body about climate change essay

Climate Change Essay for Students and Children

500+ words climate change essay.

Climate change refers to the change in the environmental conditions of the earth. This happens due to many internal and external factors. The climatic change has become a global concern over the last few decades. Besides, these climatic changes affect life on the earth in various ways. These climatic changes are having various impacts on the ecosystem and ecology. Due to these changes, a number of species of plants and animals have gone extinct.

When Did it Start?

The climate started changing a long time ago due to human activities but we came to know about it in the last century. During the last century, we started noticing the climatic change and its effect on human life. We started researching on climate change and came to know that the earth temperature is rising due to a phenomenon called the greenhouse effect. The warming up of earth surface causes many ozone depletion, affect our agriculture , water supply, transportation, and several other problems.

Reason Of Climate Change

Although there are hundreds of reason for the climatic change we are only going to discuss the natural and manmade (human) reasons.

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Natural Reasons

These include volcanic eruption , solar radiation, tectonic plate movement, orbital variations. Due to these activities, the geographical condition of an area become quite harmful for life to survive. Also, these activities raise the temperature of the earth to a great extent causing an imbalance in nature.

Human Reasons

Man due to his need and greed has done many activities that not only harm the environment but himself too. Many plant and animal species go extinct due to human activity. Human activities that harm the climate include deforestation, using fossil fuel , industrial waste , a different type of pollution and many more. All these things damage the climate and ecosystem very badly. And many species of animals and birds got extinct or on a verge of extinction due to hunting.

Effects Of Climatic Change

These climatic changes have a negative impact on the environment. The ocean level is rising, glaciers are melting, CO2 in the air is increasing, forest and wildlife are declining, and water life is also getting disturbed due to climatic changes. Apart from that, it is calculated that if this change keeps on going then many species of plants and animals will get extinct. And there will be a heavy loss to the environment.

What will be Future?

If we do not do anything and things continue to go on like right now then a day in future will come when humans will become extinct from the surface of the earth. But instead of neglecting these problems we start acting on then we can save the earth and our future.

Although humans mistake has caused great damage to the climate and ecosystem. But, it is not late to start again and try to undo what we have done until now to damage the environment. And if every human start contributing to the environment then we can be sure of our existence in the future.

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Argumentative Essay Writing

Argumentative Essay About Climate Change

Make Your Case: A Guide to Writing an Argumentative Essay on Climate Change

Published on: Mar 2, 2023

Last updated on: Jan 31, 2024

What is an Argumentative Essay about Climate Change?

The main focus will be on trying to prove that global warming is caused by human activities. Your goal should be to convince your readers that human activity is causing climate change.

To achieve this, you will need to use a variety of research methods to collect data on the topic. You need to make an argument as to why climate change needs to be taken more seriously.

Argumentative Essay Outline about Climate Change

An argumentative essay about climate change requires a student to take an opinionated stance on the subject.

The outline of your paper should include the following sections:

Argumentative Essay About Climate Change Introduction

The first step is to introduce the topic and provide an overview of the main points you will cover in the essay.

This should include a brief description of what climate change is. Furthermore, it should include current research on how humans are contributing to global warming.

An example is:

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Thesis Statement For Climate Change Argumentative Essay

The thesis statement should be a clear and concise description of your opinion on the topic. It should be established early in the essay and reiterated throughout.

For example, an argumentative essay about climate change could have a thesis statement such as:

âclimate change is caused by human activity and can be addressed through policy solutions that reduce greenhouse gas emissions and promote cleaner energy sourcesâ.

Climate Change Argumentative Essay Conclusion

The conclusion should restate your thesis statement and summarize the main points of the essay.

It should also provide a call to action, encouraging readers to take steps toward addressing climate change.

For example,

Climate change is an urgent issue that must be addressed now if we are to avoid catastrophic consequences in the future. We must take action to reduce our emissions and transition to cleaner energy sources. It is up to us as citizens to demand policy solutions from our governments that will ensure a safe and sustainable future.

How To Write An Argumentative Essay On Climate Change

Writing an argumentative essay about climate change requires a student to take an opinionated stance on the subject.

Following are the steps to follow for writing an argumentative essay about climate change

Do Your Research

The first step is researching the topic and collecting evidence to back up your argument.

You should look at scientific research, articles, and data on climate change as well as current policy solutions.

Pick A Catchy Title

Once you have gathered your evidence, it is time to pick a title for your essay. It should be specific and concise.

Outline Your Essay

After selecting a title, create an outline of the main points you will include in the essay.

This should include an introduction, body paragraphs that provide evidence for your argument, and a conclusion.

Compose Your Essay

Finally, begin writing your essay. Start with an introduction that provides a brief overview of the main points you will cover and includes your thesis statement.

Then move on to the body paragraphs, providing evidence to back up your argument.

Finally, conclude the essay by restating your thesis statement and summarizing the main points.

Proofread and Revise

Once you have finished writing the essay, it is important to proofread and revise your work.

Check for any spelling or grammatical errors, and make sure the argument is clear and logical.

Finally, consider having someone else read over the essay for a fresh perspective.

By following these steps, you can create an effective argumentative essay on climate change. Good luck!

Examples Of Argumentative Essays About Climate Change

Climate Change is real and happening right now. It is one of the most urgent environmental issues that we face today.

Argumentative essays about this topic can help raise awareness that we need to protect our planet.

Below you will find some examples of argumentative essays on climate change written by CollegeEssay.orgâs expert essay writers.

Argumentative Essay About Climate Change And Global Warming

Persuasive Essay About Climate Change

Argumentative Essay About Climate Change In The Philippines

Argumentative Essay About Climate Change Caused By Humans

Geography Argumentative Essay About Climate Change

Check our extensive blog on argumentative essay examples to ace your next essay!

Good Argumentative Essay Topics About Climate Change

Choosing a great topic is essential to help your readers understand and engage with the issue.

Here are some suggestions:

Should governments fund projects that will reduce the effects of climate change?
Is it too late to stop global warming and climate change?
Are international treaties effective in reducing carbon dioxide emissions?
What are the economic implications of climate change?
Should renewable energy be mandated as a priority over traditional fossil fuels?
How can individuals help reduce their carbon footprint and fight climate change?
Are regulations on industry enough to reduce global warming and climate change?
Could geoengineering be used to mitigate climate change?
What are the social and political effects of global warming and climate change?
Should companies be held accountable for their contribution to climate change?

Check our comprehensive blog on argumentative essay topics to get more topic ideas!

We hope these topics and resources help you write a great argumentative essay about climate change.

Now that you know how to write an argumentative essay about climate change, itâs time to put your skills to the test.

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Frequently Asked Questions

What is a good introduction to climate change.

An introduction to a climate change essay can include a short description of why the topic is important and/or relevant.

It can also provide an overview of what will be discussed in the body of the essay.

The introduction should conclude with a clear, focused thesis statement that outlines the main argument in your essay.

What is a good thesis statement for climate change?

A good thesis statement for a climate change essay should state the main point or argument you will make in your essay.

You could argue that “The science behind climate change is irrefutable and must be addressed by governments, businesses, and individuals.”

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Silhouette of a person walking through a spray of water at sunset with cars and buildings in the background.

Soaring temperatures in New York, July 2010. Photo by Eric Thayer/Reuters

The melting brain

It’s not just the planet and not just our health – the impact of a warming climate extends deep into our cortical fissures.

by Clayton Page Aldern + BIO

In February 1884, the English art critic and polymath John Ruskin took the lectern at the London Institution for a pair of lectures on the weather. ‘The Storm-Cloud of the Nineteenth Century’ was his invective against a particular ‘wind of darkness’ and ‘plague-cloud’ that, in his estimate, had begun to envelope Victorian cities only in recent years. He had been taking careful meteorological measurements, he told a sceptical audience. He railed against the ‘bitterness and malice’ of the new weather in question; and, perhaps more importantly, about how it mirrored a certain societal ‘moral gloom’. You could read in us what you could read in the weather, he suggested.

A painting of a landscape with a blue sea, mountains on the left, and dramatic, swirling clouds in the sky.

July Thundercloud in the Val d’Aosta (1858) by John Ruskin. Courtesy Wikipedia

It was easy that February, and perhaps easy today, to disregard any alleged winds of darkness as the ravings of a madman. Clouds are clouds: even if Ruskin’s existed – which was a question of some contemporaneous debate – it would be untoward to imagine they bore any relationship with the human psyche. As Brian Dillon observed of the cloud lectures in The Paris Review in 2019, it can be hard to tell where Ruskin’s ‘bad weather ends and his own ragged, doleful mood begins.’ In 1886, Ruskin suffered a mental breakdown while giving a talk in Oxford. By the end of his life at the turn of the century, he was widely considered insane. His ramblings on meteorology and the human spirit aren’t exactly treated with the same gravitas as his books on J M W Turner.

And yet, for Ruskin, the clouds weren’t just clouds: they were juiced up by a ‘dense manufacturing mist’, as he’d noted in a diary entry. The plague-clouds embodied the miasma of the Industrial Revolution; the moral gloom was specifically that which arose from the rapid societal and environmental changes that were afoot. Ruskin’s era had seen relentless transformation of pastoral landscapes into industrial hubs. Everything smelled like sulphur and suffering. Soot-filled air, chemical and human waste, the clamour of machinery – these were more than just physical nuisances. They were assaults on the senses, shaping moods and behaviour in ways that were not yet fully understood.

A dark, moody painting of an industrial landscape with smokestacks and rooftops, under a cloudy sky with hints of light in the distance.

Mining Area (1852-1905) by Constantin Meunier. Courtesy Wikipedia

Ruskin believed that the relentless pace of industrialisation, with its cacophony of tools and sprawling factories and environmental destruction, undermined psychological wellbeing: that the mind, much like the body, required a healthy social and physical environment to thrive. This was actually a somewhat new idea. (Isaac Ray, a founder of the American Psychiatric Association, wouldn’t define the idea of ‘mental hygiene’, the precursor to mental health, until 1893.) Instability in the environment, for Ruskin, begot instability in the mind. One reflected the other.

M ore than a century later, as we grapple with a new suite of breakneck environmental changes, the plague-clouds are again darkly literal. Global average surface temperatures have risen by about 1.1°C (2°F) since the pre-industrial era, with most of this warming occurring in the past 40 years. Ice is melting; seas are steadily rising; storms are – well, you know this story. And yet, most frequently, it is still a story of the world out there: the world outside of us. The narrative of climate change is one of meteorological extremes, economic upheaval and biodiversity losses. But perhaps it is worth taking a maybe-mad Ruskin seriously. What of our internal clouds? As the climate crisis warps weather and acidifies oceans and shatters temperature records with frightening regularity, one is tempted to ask if our minds are changing in kind.

Here are some of the most concerning answers in the affirmative. Immigration judges are less likely to rule in favour of asylum seekers on hotter days. On such days, students behave as if they’ve lost a quarter-year of education, relative to temperate days. Warmer school years correspond to lower rates of learning. Temperature predicts the incidence of online hate speech. Domestic violence spikes with warmer weather. Suicide , too.

In baseball, pitchers are more likely to hit batters with their pitches on hot days

But you already know what this feels like. Perhaps you’re more ornery in the heat. Maybe you feel a little slow in the head. It’s harder to focus and easier to act impulsively. Tomes of cognitive neuroscience and behavioural economics research back you up, and it’s not all as dire as domestic violence. Drivers honk their horns more frequently (and lean on them longer) at higher temperatures. Heat predicts more aggressive penalties in sport. In baseball, pitchers are more likely to hit batters with their pitches on hot days – and the outdoor temperature is an even stronger predictor of their tendency to retaliate in this manner if they’ve witnessed an opposing pitcher do the same thing.

In other words: it would appear the plague-clouds are within us, too. They illustrate the interconnectedness of our inner and outer worlds. They betray a certain flimsiness of human agency, painting our decision-making in strokes of environmental influence far bolder than our intuition suggests. And they throw the climate crisis into fresh, stark relief: because, yes, as the climate changes, so do we.

T he London Institution closed in 1912. These days, when you want to inveigh against adverse environmental-mind interactions, you publish a paper in The Lancet . And so that is what 24 mostly British, mostly clinical neurologists did in May 2024, arguing that the ‘incidence, prevalence, and severity of many nervous system conditions’ can be affected by global warming. For these researchers, led by Sanjay Sisodiya, professor of neurology at University College London in the UK, the climate story is indeed one of internal clouds.

In their survey of 332 scientific studies, Sisodiya and his colleagues show that climatic influence extends far beyond behaviour and deep into cortical fissures. Aspects of migraine, stroke, seizure and multiple sclerosis all appear to be temperature dependent. In Taiwan, report the authors, the risk of schizophrenia hospitalisation increases with widening daytime temperature ranges. In California , too, ‘hospital visits for any mental health disorder, self-harm, intentional injury of another person, or homicide’ rise with broader daily temperature swings. In Switzerland , hospitalisations for psychiatric disorders increase with temperature, with the risk particularly pronounced for those with developmental disorders and schizophrenia.

Outside the hospital, climate change is extending the habitable range of disease vectors like ticks, mosquitoes and bats, causing scientists to forecast an increased incidence of vector-borne and zoonotic brain maladies like yellow fever, Zika and cerebral malaria. Outside the healthcare system writ large, a changing environment bears on sensory systems and perception, degrading both sensory information and the biological tools we use to process it. Outside the realm of the even remotely reasonable, warming freshwater brings with it an increased frequency of cyanobacterial blooms, the likes of which release neurotoxins that increase the risk of neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS, also known as Lou Gehrig’s disease).

Experiencing natural disasters in utero greatly increases children’s risk of anxiety, depression and ADHD

Indeed, recent studies suggest that climate change may be exacerbating the already substantial burden of neurodegenerative diseases like Parkinson’s and Alzheimer’s. In countries with warmer-than-average climates, more intense warming has been linked to a greater increase in Parkinson’s cases and, as Sisodiya et al note, the highest forecasted rates of increase in dementia prevalence are ‘expected to be in countries experiencing the largest effects of climate change’. Similarly, short-term exposure to high temperatures appears to drive up emergency department visits for Alzheimer’s patients. The air we breathe likely plays a complementary role: in Mexico City, for example, where residents are exposed to high levels of fine particulate matter and ozone from a young age, autopsies have revealed progressive Alzheimer’s pathology in 99 per cent of those under the age of 30.

The risks aren’t limited to those alive today. In 2022, for example, an epidemiological study revealed that heat exposure during early pregnancy is associated with a significantly increased risk of children developing schizophrenia, anorexia and other neuropsychiatric conditions. High temperatures during gestation have long been known to delay neurodevelopment in rats. Other scientists have shown that experiencing natural disasters in utero greatly increases children’s risk of anxiety, depression, attention-deficit/hyperactivity disorder and conduct disorders later in life. Such effects cast the intergenerational responsibilities of the Anthropocene in harsh new light – not least because, as Sisodiya and colleagues write, there is a tremendous ‘global disparity between regions most affected by climate change (both now and in the future) and regions in which the majority of studies are undertaken.’ We don’t know what we don’t know.

What we do know is that the brain is emerging, in study after study, as one of climate change’s most vulnerable landscapes.

It is a useful reorientation. Return to the horn-honking and the baseball pitchers for a moment. A focus on the brain sheds some potential mechanistic light on the case studies and allows us to avoid phrases like ‘wind of darkness’. Higher temperatures, for example, appear to shift functional brain networks – the coordinated behaviour of various regions – toward randomised activity. In extreme heat, scientists have taken note of an overworked dorsolateral prefrontal cortex (dlPFC), the evolutionarily new brain region that the neuroendocrinologist Robert M Sapolsky at Stanford University in the US calls ‘the definitive rational decider in the frontal cortex’. The dlPFC limits the degree to which people make impulsive decisions; disrupted dlPFC activity tends to imply a relatively heightened influence of limbic structures (like the emotionally attuned amygdala) on behaviour. More heat, less rational decision-making.

When extreme heat reaches into your mind and tips your scales toward violence, it is constraining your choices

The physicality of environmental influence on the brain is more widespread than the dlPFC – and spans multiple spatial scales. Heat stress in zebrafish, for example, down-regulates the expression of proteins relevant to synapse construction and neurotransmitter release. In mice, heat also triggers inflammation in the hippocampus, a brain region necessary for memory formation and storage. While neuroinflammation often plays an initially protective role, chronic activation of immune cells – like microglia and astrocytes – can turn poisonous, since pro-inflammatory molecules can damage brain cells in the long run. In people, hyperthermia is associated with decreased blood flow to this region. Psychologists’ observations of waning cognition and waxing aggression at higher temperatures makes a world of sense in the context of such findings.

The nascent field of environmental neuroscience seeks to ‘understand the qualitative and quantitative relationships between the external environment, neurobiology, psychology and behaviour’. Searching for a more specific neologism – since that particular phrase also encompasses environmental exposures like noise, urban development, lighting and crime – we might refer to our budding, integrative field as climatological neuroepidemiology. Or, I don’t know, maybe we need something snappier for TikTok. Neuroclimatology? Ecological neurodynamics?

I tend to prefer: the weight of nature.

The weight forces our hands, as in the case of the behavioural effects highlighted above. When extreme heat reaches into your mind and tips your scales toward violence, it is constraining your choices. By definition, impulsive decisions are rooted in comparatively less reflection than considered decisions: to the extent that a changing climate influences our reactions and decision-making, we should understand it as compromising our perceived free will. The weight of nature is heavy. It displaces us.

It is also a heavy psychological burden to carry. You are likely familiar with the notion of climate anxiety . The phrase, which tends to refer to a near-pathological state of worry and fear of impending environmental destruction, has never sat particularly well with me. Anxiety, as defined by the Diagnostic and Statistical Manual , is usually couched in terms of ‘excessive’ worry. I’m not convinced there’s anything excessive about seeing the climatic writing on the wall and feeling a sense of doom. Perhaps we ought to consider the climate-anxious as having more developed brains than the rest of the litter – that the Cassandras are the only sane ones left.

I ’m not exactly joking. Neuroscience has begun to study the brains in question, and not for nothing. The midcingulate cortex, a central hub in the brain’s threat-detection circuitry, may hold some clues to the condition’s biological basis: in one 2024 study , for example, researchers at Northern Michigan University in the US found that people who reported higher levels of anxiety about climate change showed distinct patterns of brain structure and function in this region, relative to those with lower levels of climate anxiety – and irrespective of base levels of anxiety writ large. In particular, the climate-anxious brain appears to play host to a smaller midcingulate (in terms of grey matter), but one that’s functionally more connected to other key hubs in the brain’s salience network, a system understood to constantly scan the environment for emotionally relevant information. In the salience network, the midcingulate cortex works hand in hand with limbic structures like the amygdala and insula to prepare the body to respond appropriately to this type of information. In people with climate anxiety, this network may be especially attuned to signals of climate-related threats.

Rather than indicating a deficiency, then, a diminutive midcingulate might reflect a more efficient, finely honed threat-detection system. The brain is well known to prune redundant connections over time, preserving only the most useful neural pathways. Selective sculpting, suggest the Michigan researchers, may allow the climate-anxious brain to process worrisome information more effectively, facilitating rapid communication between the midcingulate and other regions involved in threat anticipation and response. In other words, they write, the climate-anxious midcingulate might be characterised by ‘more efficient wiring’.

This neural sensitivity to potential dangers could be both a blessing and a curse. On one hand, it may attune some people to the very real perils of the future. The midcingulate is critical for anticipating future threats, and meta-analyses have found the region to be consistently activated when people contemplate unpredictable negative outcomes. Given the looming spectre of climate catastrophe, a hair-trigger threat-detection system could be an adaptive asset.

Climate anxiety is not just a sociocultural phenomenon. It has a theoretically identifiable neural correlate

On the other hand, argue the researchers:

[T]he complexity, uncertainty, as well as temporal and geographical distance of the climate crisis, in addition to its global nature, may lead individuals to deprioritising the risks associated with climate change, or becoming overwhelmed and disengaged – a state sometimes referred to as ‘eco-paralysis’.

An overactive midcingulate has been implicated in clinical anxiety disorders, and the new findings suggest that climate anxiety shares some of the same neural underpinnings. (It’s important to recall that climate anxiety seems to be distinct from generalised anxiety, though, as the brain differences observed in the Michigan study couldn’t be explained by overall anxiety levels.)

Ultimately, while speculative, these findings suggest that climate anxiety is not merely a sociocultural phenomenon, but one with theoretically identifiable neural correlates. They provide a potential biological framework for understanding why some people may be more psychologically impacted by climate change than others. And they raise intriguing questions about whether the brains of the climate anxious are particularly well-suited for confronting the existential threat of a warming world – or whether they are vulnerable to becoming overwhelmed by it. In all cases, though, they illustrate that world reaching inward.

T here is perhaps a flipside to be realised here. A changing climate is seeping into our very neurobiology. What might it mean to orient our neurobiology toward climate change?

Such is the premise of a 2023 article in Nature Climate Change by the neuroscientist Kimberly Doell at the University of Vienna in Austria and her colleagues, who argue that the field is well positioned to inform our understanding of climate-adaptation responses and pro-environmental decision-making. In the decades since Ruskin shook his fists at the sky, environmental neuroscience has begun to probe the reciprocal dance between organisms and their ecological niches. We know now that the textures of modern environments – green spaces, urban sprawl, socioeconomic strata – all leave their mark on the brain. Climate change is no different.

Accordingly, argue Doell et al, scientists and advocates alike can integrate findings from neuroscience to improve communications strategies aimed at spurring climate action. They want to turn the tables, taking advantage of insights from neurobiology and cognitive neuroscience to more effectively design climate solutions – both within ourselves and for society as a whole.

The Anthropocene’s fever dream is already warping our wetware

We have models for this type of approach. Poverty research, for instance, has long implicated socioeconomic conditions with subpar health. In more recent years, neuroscience has reverse-engineered the pathways by which poverty’s various insults – understimulation, toxic exposures, chronic stress – can erode neural architecture and derail cognitive development. Brain science alone won’t solve poverty, yet even a limited understanding of these mechanisms has spurred research in programmes like Head Start, a family-based preschool curriculum that has been shown to boost selective attention (as evident in electrophysiological recordings) and cognitive test scores. While the hydra of structural inequity is not easily slain, neuroscientists have managed to shine some light on poverty’s neural correlates, flag its reversible harms, and design precision remedies accordingly. This same potential, argue Doell and her colleagues, extends to the neuroscience of climate change.

To realise this potential, though, we need to further understand how the Anthropocene’s fever dream is already warping our wetware. Social and behavioural science have begun cataloguing the psychological fallout of a planet in flux, but a neural taxonomy of climate change awaits. The field’s methodological and conceptual arsenal is primed for the challenge, but honing it will demand alliances with climate science, medicine, psychology, political science and beyond.

Some are trying. For example, the Kavli Foundation in Los Angeles, US, recognising a need for answers, last year put out a call for scientists to investigate how neural systems are responding to ecological upheaval. With a trial $5 million, the foundation aims to illuminate how habitat loss, light pollution and other environmental insults may be influencing the molecular, cellular and circuit-level machinery of brains, human and otherwise. The central question is: in a biosphere where change is the only constant, are neural systems plastic enough to keep pace, or will they be left struggling to adapt?

The first wave of researchers to take up Kavli’s challenge are studying a diverse array of creatures, each uniquely positioned to reveal insights about the brain’s resilience in the face of planetary disruption. Wolfgang Stein at Illinois State University in the US and Steffen Harzsch at University of Greifswald in Germany, for example, focus on crustaceans, seeking to understand how their neural thermal regulators cope with rising temperatures in shallow and deep waters. Another group has targeted the brains of cephalopods, whose RNA-editing prowess may be key to their ability to tolerate plummeting oxygen levels in their increasingly suffocating aquatic habitats. A third Kavli cohort, led by Florence Kermen at University of Copenhagen in Denmark, is subjecting zebrafish to extreme temperatures, scouring their neurons and glial cells for the molecular signatures that allow them to thrive – even as their watery world heats up.

These initial investments have sparked federal curiosity. In December 2023, the US National Science Foundation joined forces with Kavli, inviting researchers to submit research proposals that seek to probe the ‘modulatory, homeostatic, adaptive, and/or evolutionary mechanisms that impact neurophysiology in response to anthropogenic environmental influence’. We may not be in arms-race territory yet, but at least there’s a suggestion that we’re beginning to walk in the right direction.

T he brain, that spongy command centre perched atop our spinal cord, has always been a black box. As the climate crisis tightens its grip, and the ecological ground beneath our feet grows ever more unsteady, the imperative to pry it open and peer inside grows more urgent by the day. Already, we’ve begun to glimpse the outlines of a new neural cartography, sketched in broad strokes by the likes of Sisodiya and his colleagues. We know now that the brain is less a static lump of self-regulating tissue than it is a dynamic, living landscape, its hills and valleys shaped by the contours of our environment. Just as the Greenland ice sheet groans and buckles under the heat of a changing climate, so too do our synapses wither and our neurons wink out as the mercury rises. Just as rising seas swallow coastlines, and forests succumb to drought and flame, the anatomical borders of our brains are redrawn by each new onslaught of environmental insult.

But the dialogue between brain and biosphere is not a one-way street. The choices we make, the behaviours we pursue, the ways in which we navigate a world in crisis – all of these decisions are reflected back onto the environment, for good or for ill. So, I offer: in seeking to understand how a changing climate moulds the contours of our minds, we must also reckon with how the architecture of our thoughts might be renovated in service of sustainability.

Bit by bit, synapse by synapse, we can chart a course through the gathering plague-cloud

The cartographers of the Anthropocene mind have their work cut out for them. But in the hands of neuroscience – with its shimmering brain scans and humming electrodes, its gene-editing precision and algorithmic might – there is something approaching a starting point. By tracing the pathways of environmental impact to their neural roots, and by following the cascading consequences of our mental processes back out into the world, we might yet begin to parse the tangled web that binds the fates of mind and planet.

This much is clear: as the gears of the climate crisis grind on, our brains will be swept along for the ride. The question is whether we’ll be mere passengers, or whether we’ll seize the controls and steer towards something resembling a liveable future. The weight of nature – the immensity of the crisis we face – is daunting. But it need not be paralysing. Bit by bit, synapse by synapse, we can chart a course through the gathering plague-clouds. It was Ruskin, at a slightly more legible moment in his life, who offered: ‘To banish imperfection is to destroy expression, to check exertion, to paralyse vitality.’ Even if we somehow could, we ought not banish the alleged imperfections of environmental influence on the mind. Instead, we ought to read in them an intimate, vital relationship between self and world.

In this, climatological neuroepidemiology – young and untested though it may be – is poised to play an outsized role. In gazing into the black box of the climate-altered mind, in illuminating the neural circuitry of our planetary predicament, the field offers something precious: a flicker of agency in a world that often feels as if it’s spinning out of control. It whispers that the levers of change are within reach, lodged in the squishy confines of our crania, waiting to be grasped. And it suggests that, even as the weight of nature presses down upon us, we might yet find a way to press back.

Black-and-white photo of a man in a suit and hat grabbing another man by his collar in front of a bar with bottles.

Political philosophy

C L R James and America

The brilliant Trinidadian thinker is remembered as an admirer of the US but he also warned of its dark political future

Harvey Neptune

A suburban street with mountains in the background, featuring a girl on a bike, parked cars, and old furniture on the sidewalk in front of a house.

Progress and modernity

The great wealth wave

The tide has turned – evidence shows ordinary citizens in the Western world are now richer and more equal than ever before

Daniel Waldenström

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Falling for suburbia

Modernists and historians alike loathed the millions of new houses built in interwar Britain. But their owners loved them

Michael Gilson

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Computing and artificial intelligence

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Climate Change Essay

500+ words essay on climate change.

Climate change is a major global challenge today, and the world is becoming more vulnerable to this change. Climate change refers to the changes in Earth’s climate condition. It describes the changes in the atmosphere which have taken place over a period ranging from decades to millions of years. A recent report from the United Nations predicted that the average global temperature could increase by 6˚ Celsius at the end of the century. Climate change has an adverse effect on the environment and ecosystem. With the help of this essay, students will get to know the causes and effects of climate change and possible solutions. Also, they will be able to write essays on similar topics and can boost their writing skills.

What Causes Climate Change?

The Earth’s climate has always changed and evolved. Some of these changes have been due to natural causes such as volcanic eruptions, floods, forest fires etc., but quite a few of them are due to human activities. Human activities such as deforestation, burning fossil fuels, farming livestock etc., generate an enormous amount of greenhouse gases. This results in the greenhouse effect and global warming which are the major causes of climate change.

Effects of Climate Change

If the current situation of climate change continues in a similar manner, then it will impact all forms of life on the earth. The earth’s temperature will rise, the monsoon patterns will change, sea levels will rise, and storms, volcanic eruptions and natural disasters will occur frequently. The biological and ecological balance of the earth will get disturbed. The environment will get polluted and humans will not be able to get fresh air to breathe and fresh water to drink. Life on earth will come to an end.

Steps to be Taken to Reduce Climate Change

The Government of India has taken many measures to improve the dire situation of Climate Change. The Ministry of Environment and Forests is the nodal agency for climate change issues in India. It has initiated several climate-friendly measures, particularly in the area of renewable energy. India took several steps and policy initiatives to create awareness about climate change and help capacity building for adaptation measures. It has initiated a “Green India” programme under which various trees are planted to make the forest land more green and fertile.

We need to follow the path of sustainable development to effectively address the concerns of climate change. We need to minimise the use of fossil fuels, which is the major cause of global warming. We must adopt alternative sources of energy, such as hydropower, solar and wind energy to make a progressive transition to clean energy. Mahatma Gandhi said that “Earth provides enough to satisfy every man’s need, but not any man’s greed”. With this view, we must remodel our outlook and achieve the goal of sustainable development. By adopting clean technologies, equitable distribution of resources and addressing the issues of equity and justice, we can make our developmental process more harmonious with nature.

We hope students liked this essay on Climate Change and gathered useful information on this topic so that they can write essays in their own words. To get more study material related to the CBSE, ICSE, State Board and Competitive exams, keep visiting the BYJU’S website.

Frequently Asked Questions on climate change Essay

What are the reasons for climate change.

1. Deforestation 2. Excessive usage of fossil fuels 3. Water, Soil pollution 4. Plastic and other non-biodegradable waste 5. Wildlife and nature extinction

How can we save this climate change situation?

1. Avoid over usage of natural resources 2. Do not use or buy items made from animals 3. Avoid plastic usage and pollution

Are there any natural causes for climate change?

Yes, some of the natural causes for climate change are: 1. Solar variations 2. Volcanic eruption and tsunamis 3. Earth’s orbital changes

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Home — Essay Samples — Environment — Environment Problems — Climate Change

Essays on Climate Change

Climate change: essay topics for college students.

Welcome to our resource page designed for college students seeking inspiration for their climate change essays. The choice of topic is a crucial first step in the writing process, reflecting your personal interests and creativity. This page aims to guide you through selecting a compelling essay topic that not only captivates your interest but also challenges you to think critically and analytically.

Depending on your assignment requirements or personal preference, essays can be categorized into several types. Below, you will find a variety of climate change essay topics categorized by essay type. Each topic is accompanied by an introductory paragraph example, highlighting a clear thesis statement, and a conclusion paragraph example that summarizes the essay's main points and reiterates the thesis.

Argumentative Essays

Topic: The Effectiveness of International Agreements in Combating Climate Change
Thesis Statement: International agreements, though crucial, are not sufficiently effective in combating climate change without enforceable commitments.

Conclusion Example: In summarizing, international agreements provide a framework for climate action but lack the enforcement necessary for real change. To combat climate change effectively, these agreements must be accompanied by binding commitments that ensure countries adhere to their promises, underscoring the need for a more robust global enforcement mechanism.

Compare and Contrast Essays

Topic: Renewable Energy Sources vs. Fossil Fuels: A Comparative Analysis
Thesis Statement: Renewable energy sources, despite higher initial costs, are more environmentally sustainable and cost-effective in the long run compared to fossil fuels.

Conclusion Example: Through this comparative analysis, it is clear that renewable energy sources offer a more sustainable and cost-effective solution to powering our world than fossil fuels. Embracing renewables not only mitigates the impact of climate change but also secures a sustainable energy future.

Descriptive Essays

Topic: The Impact of Climate Change on Coral Reefs
Thesis Statement: Climate change poses a severe threat to coral reefs, leading to bleaching events, habitat loss, and a decline in marine biodiversity.

Conclusion Example: The devastation of coral reefs is a stark reminder of the broader impacts of climate change on marine ecosystems. Protecting these vital habitats requires immediate action to mitigate the effects of climate change and preserve marine biodiversity for future generations.

Persuasive Essays

Topic: The Role of Individual Actions in Mitigating Climate Change
Thesis Statement: Individual actions, when collectively embraced, can drive significant environmental change and are essential in the fight against climate change.

Conclusion Example: In conclusion, the cumulative effect of individual actions can make a substantial difference in addressing climate change. By adopting more sustainable lifestyles, individuals can contribute to a larger movement towards environmental stewardship and climate action.

Narrative Essays

Topic: A Personal Journey Towards Sustainable Living
Thesis Statement: Through personal commitment to sustainable living, individuals can contribute meaningfully to mitigating climate change while discovering the intrinsic rewards of a simpler, more purposeful lifestyle.

Conclusion Example: This journey towards sustainable living has not only contributed to climate action but has also offered a deeper appreciation for the importance of individual choices. As more people embark on similar journeys, the collective impact on our planet can be transformative.

We encourage you to select a topic that resonates with your personal interests and academic goals. Dive deep into your chosen subject, employ critical thinking, and let your creativity flow as you explore different perspectives and solutions to climate change. Remember, the best essays are not only informative but also engaging and thought-provoking.

Writing on these topics will not only enhance your understanding of climate change and its implications but also develop your skills in research, critical thinking, persuasive writing, and narrative storytelling. Each essay type offers a unique opportunity to explore different facets of the climate crisis, encouraging you to engage with the material in a meaningful way.

Hooks for Climate Change Essay

Climate change is not just an environmental issue; it is a pressing global crisis that affects every aspect of our lives. From melting polar ice caps to rising sea levels, the signs of climate change are everywhere, and they are impossible to ignore.

Imagine a world where natural disasters are a daily occurrence. This is not a dystopian future; it is the reality we face if we do not address climate change now.
Have you ever wondered why the summers seem hotter and the winters milder? The answer lies in the alarming acceleration of climate change.
Picture your favorite coastal city submerged under water. This scenario is closer than you think due to the rapid rise in sea levels.
What if I told you that climate change could lead to the extinction of over one million species by 2050? The clock is ticking for our planet's biodiversity.
Every time you turn on a light or drive your car, you contribute to a global problem. Understanding the personal impact of climate change is the first step towards meaningful action.

Climate Change Outline Essay Examples

Example 1: causes and effects of climate change, introduction.

Introduce the topic of climate change, its significance, and provide a thesis statement outlining the main points.

Greenhouse Gas Emissions

Deforestation

Industrial Activities

Urbanization

Rising Sea Levels

Extreme Weather Events

Loss of Biodiversity

Impact on Human Health

Renewable Energy Sources

Afforestation and Reforestation

Policy and Legislation

Public Awareness and Education

Summarize the main points, restate the significance of addressing climate change, and provide a call to action for individuals and policymakers.

Example 2: The Impact of Climate Change on Global Ecosystems

Introduce the importance of ecosystems and how they are threatened by climate change. Provide a thesis statement outlining the main areas of focus.

Coral Bleaching

Ocean Acidification

Disruption of Marine Food Chains

Forest Degradation

Changes in Wildlife Migration Patterns

Alteration of Plant Growth Cycles

Glacial Melt and Reduced Snowpack

Changes in Water Quality

Disruption of Aquatic Species Habitats

Summarize the impacts of climate change on different ecosystems, emphasize the interconnectedness of these systems, and highlight the need for comprehensive conservation efforts.

Example 3: The Role of Policy in Combating Climate Change

Introduce the role of policy in addressing climate change, and provide a thesis statement highlighting the importance of governmental and international efforts.

Renewable Energy Incentives

Carbon Pricing

Regulations on Emissions

Paris Agreement

Kyoto Protocol

UN Climate Change Conferences (COP)

Economic and Political Barriers

Technological Innovations

Public and Private Sector Collaboration

Summarize the role of policy in combating climate change, discuss the need for robust and enforceable policies, and call for increased global cooperation and commitment.

Climate Change Solutions: Navigating Toward a Sustainable Future

The causes and effects of climate change: a comprehensive analysis, made-to-order essay as fast as you need it.

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150-word on Global Warming

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How Global Warming Changed Earth's Environment

Analysis of the possible causes of climate change, climate change as a serious threat, global warming and what people can do to save earth, get a personalized essay in under 3 hours.

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Mother Nature and Climate Change: We Must Take Action

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Climate change refers to long-term changes in the Earth's climate, including rising temperatures, shifting weather patterns, and more severe natural disasters.

The historical context of climate change spans centuries. The Industrial Revolution in the 18th century marked increased fossil fuel use, releasing significant greenhouse gases. By the late 19th century, scientists like Svante Arrhenius linked carbon dioxide to Earth's temperature. Climate change gained attention in the mid-20th century, with the 1958 Keeling Curve showing rising CO2 levels. Key events include the 1988 establishment of the IPCC, the 1992 UNFCCC, the 1997 Kyoto Protocol, and the 2015 Paris Agreement.

Greenhouse gas emissions: The burning of fossil fuels, such as coal, oil, and natural gas, releases carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) into the atmosphere, trapping heat and contributing to global warming.
Industrial activities: Industrial processes, including manufacturing, construction, and chemical production, release CO2 and other greenhouse gases through energy consumption and the use of certain chemicals.
Agricultural practices: Livestock farming produces methane through enteric fermentation and manure management, while the use of synthetic fertilizers releases nitrous oxide.
Land use changes: Converting land for agriculture, urban development, or other purposes alters natural ecosystems and contributes to the release of CO2 and other greenhouse gases.
Waste management: Improper handling and decomposition of organic waste in landfills produce methane, a potent greenhouse gas.
Rising temperatures: Global warming leads to increased average temperatures worldwide, resulting in heatwaves, melting glaciers and polar ice, and rising sea levels.
Extreme weather events: Climate change intensifies extreme weather events such as hurricanes, droughts, floods, and wildfires, leading to devastating impacts on ecosystems, communities, and infrastructure.
Disruption of ecosystems: Changes in temperature and precipitation patterns disrupt ecosystems, affecting biodiversity, migration patterns, and the survival of plant and animal species.
Health impacts: Climate change contributes to the spread of diseases, heat-related illnesses, and respiratory problems due to increased air pollution and the expansion of disease vectors.
Water scarcity: Changing climate patterns can alter rainfall patterns, causing water scarcity in certain regions, affecting agriculture, drinking water supplies, and ecosystems that depend on water sources.

Transitioning to renewable energy sources like solar, wind, and hydropower, along with improving energy efficiency in industries and buildings, can significantly reduce greenhouse gas emissions. Promoting electric vehicles, public transportation, and biking infrastructure further cuts emissions. Forest conservation and reforestation help absorb carbon dioxide, while sustainable agriculture practices reduce emissions and improve soil health. Embracing a circular economy reduces waste, and strong climate policies alongside public awareness drive collective action against climate change.

The levels of carbon dioxide (CO2) in the Earth's atmosphere are currently higher than any recorded in the past 800,000 years. According to data from ice core samples, pre-industrial CO2 levels averaged around 280 parts per million (ppm), while current levels have exceeded 410 ppm.
The Earth's average temperature has increased by about 1 degree Celsius since the late 19th century.
The Arctic region is warming at a faster pace than any other part of the planet.
Human activities, such as burning fossil fuels and deforestation, are major contributors to climate change.
Climate change is also affecting wildlife, with many species facing extinction due to habitat loss.

Climate change is a critical issue that affects all aspects of our lives, from the environment to the economy. It poses a threat to biodiversity, food security, and human health. Addressing climate change requires global cooperation and immediate action to reduce greenhouse gas emissions and mitigate its impacts. By raising awareness and taking steps to combat climate change, we can protect the planet for future generations.

1. Intergovernmental Panel on Climate Change. (2018). Global warming of 1.5°C. Retrieved from https://www.ipcc.ch/sr15/ 2. National Aeronautics and Space Administration. (n.d.). Climate change: How do we know? Retrieved from https://climate.nasa.gov/evidence/ 3. United Nations Framework Convention on Climate Change. (2015). Paris Agreement. Retrieved from https://unfccc.int/process-and-meetings/the-paris-agreement/the-paris-agreement 4. World Health Organization. (2018). Climate change and health. Retrieved from https://www.who.int/news-room/fact-sheets/detail/climate-change-and-health 5. Environmental Protection Agency. (2021). Climate change indicators: Atmospheric concentrations of greenhouse gases. Retrieved from https://www.epa.gov/climate-indicators/greenhouse-gases 6. United Nations Environment Programme. (2020). Emissions gap report 2020. Retrieved from https://www.unep.org/emissions-gap-report-2020 7. Stern, N. (2007). The economics of climate change: The Stern Review. Cambridge University Press. 8. Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. (2019). Summary for policymakers of the global assessment report on biodiversity and ecosystem services. Retrieved from https://ipbes.net/sites/default/files/2020-02/ipbes_global_assessment_report_summary_for_policymakers_en.pdf 9. World Meteorological Organization. (2021). State of the global climate 2020. Retrieved from https://library.wmo.int/doc_num.php?explnum_id=10739 10. Cook, J., Oreskes, N., Doran, P. T., Anderegg, W. R., Verheggen, B., Maibach, E. W., ... & Nuccitelli, D. (2016). Consensus on consensus: A synthesis of consensus estimates on human-caused global warming. Environmental Research Letters, 11(4), 048002. doi:10.1088/1748-9326/11/4/048002

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Climate Change Essay: Example and Tips

The following example of climate change essay should be used as a source of information and inspiration. We do not advise direct copy and paste of the parts of the text or the whole paper, because of plagiarism detection. For the ease of use, the paper is divided into logical parts.

1.1 Introduction to climate change essay example
1.2 Body of climate change essay example
1.3.1 Natural disasters
1.3.2 Unsuitable territories for living
1.3.3 The impact on biological diversity
1.3.4 Lack of drinking water, hunger and epidemics
1.3.5 Increasing the level of the world ocean
1.4.1 Adapting the life of society to new conditions
1.4.2 Reducing greenhouse gas emissions
1.5 Conclusion to the climate change essay example

Example of climate change essay

Introduction to climate change essay example.

In recent years, the climate on Earth has changed markedly: some countries suffer from anomalous heat, others from too harsh and snowy winters unusual for these places.

Environmentalists talk about global climate change including an increase in the average annual temperature causing melting of glaciers and an increase in the level of the world’s oceans. In addition to warming, there is also an unbalance of all natural systems, which leads to a change in the regime of precipitation, temperature anomalies and an increase in the frequency of extreme events such as hurricanes, floods and droughts.

According to scientists, for ten months of 2015 the average temperature of the planet was 1.02° C higher than that recorded in the XIX century (when the observation of changes in global temperature began). The threshold of one degree was exceeded for the first time in modern history. Scientists agree that the cause lies in human activity – burning of oil, gas and coal – that leads to greenhouse effect that causes an increase in average temperature. Experts note that between 2000 and 2010, the most powerful increase in greenhouse gas emissions over the past 30 years has been observed. According to the World Meteorological Organization, in 2014, their concentration in the atmosphere reached a record high level.

Secretary General of the World Meteorological Organization Michel Jarraud said: “We do not see CO2. This is not a visible threat, but quite real. This means an increase in global temperatures, an increase in the number of extreme weather events, such as floods, melting ice, rising sea level and increasing the acidity of the oceans.”

Body of climate change essay example

If countries do not begin to seriously deal with the problem of environmental protection, by 2100 the temperature on the planet can rise by 3.7-4.8° C. Climatologists warn: irreversible consequences for the ecology will come even with a warming of more than 2° C.

In order to draw maximum attention to climate problems, the UN has attracted not only politicians and scientists, but also celebrities, to the debate. Hollywood actor Robert Redford in his statement warned that for the international community “the time of half measures and the denial of the problem of climate change has ended.”

“We see the effects of this phenomenon (climate change) everywhere – from drought and hunger in Africa and the drying up heat in South Asia to wildfires in North America, devastating hurricanes and floods in New York. We must act together because climate change affects every country” – actor Robert Redford.

What are the consequences for the planet, if the temperature rise can not be stopped?

Natural disasters.

The climatic zones will shift, the weather changes will become more severe (severe frosts, followed by sudden thaws in winter, an increase in the number of abnormally hot days in summer). The frequency and strength of abnormal phenomena such as droughts and floods will increase.

The connection between climate change and the emergence of natural disasters was proved by American scientists who discovered traces of warming in the study of tropical cyclones in the Pacific, unusually high summer temperatures in Europe, China, South Korea and Argentina, and forest fires in the US state of California. Climate change has also catalyzed drought in Africa and the Middle East, snowstorms in Nepal and torrential downpours that have caused floods in Canada and New Zealand.

Unsuitable territories for living

Some countries due to increased humidity and high average temperature by 2100 may become unsuitable for life. According to a study by American scientists, Qatar, Saudi Arabia, Bahrain, the United Arab Emirates and other countries of the Middle East are at risk.

According to the calculations of climatologists, at the current rate of growth of greenhouse gas emissions by 2070 the average air temperature in the countries of the Persian Gulf can reach 74-77° C. This will make the territories unsuitable for people. An exception may be large megacities with a developed air conditioning system. But people will be able to leave the house only at night.

The impact on biological diversity

According to some scientists, we are in the middle of the sixth in the history of the Earth mass extinction of species. And this time this process is caused by human actions. If climate warming does not stop, many ecosystems, species of living beings that they contain, will become less diverse, less saturated.

There are forecasts of extinction of up to 30-40% of plant and animal species, as their habitat will change faster than they can adapt to these changes.

Lack of drinking water, hunger and epidemics

UN experts warn that warming will negatively affect yields, especially in the underdeveloped countries of Africa, Asia and Latin America, which will lead to food problems. According to scientists, by 2080 the number of people facing the threat of hunger can increase by 600 million people.

Another important consequence of climate change may be a shortage of drinking water. In regions with arid climate (Central Asia, the Mediterranean, South Africa, Australia, etc.), the situation will be further exacerbated by the reduction in rainfall.

Hunger, water scarcity, and insect migration can lead to an increase in epidemics and the spread of tropical diseases such as malaria in the northern regions.

Climate change can affect not only people’s health, but also increase the risk of political disagreements and conflicts for access to water and food resources.

Increasing the level of the world ocean

One of the most tangible consequences of climate warming is likely to be the melting of glaciers and an increase in the level of the World Ocean. Millions of people on the coast will die from frequent floods or will be forced to relocate, UN analysts predict.

According to the expert community, sea level rise in the 21st century will be up to 1 m (in the 20th century – 0.1-0.2 m). In this case, the most vulnerable are the lowlands, coastal areas and small islands.

The first to enter the risk zone are the Netherlands, Bangladesh and small island states, such as the Bahamas, the Maldives.

Significant territories can be flooded in countries such as Russia, the United States, Britain, Italy, Germany, Denmark, Belgium, Iraq, Thailand and Vietnam. Serious damage threatens China, where about 140 million people can lose their homes, and Japan, where it can flood more than 30 million people – a quarter of the country’s population.

Facts about climate change and its consequences for different countries

The rise in the level of the World Ocean threatens many cities with flooding. One of the first to go under the water is Venice. The Italian city is located on several islands, the maximum height of which does not exceed 2 meters above sea level;
Even now in Venice, there are regular floods. In 2008, in some areas of the city the water rose by 156 centimeters, and on the San Marco square by 70-80 centimeters;
A rise in sea level of more than 2 meters will lead to the flooding of Amsterdam. The fourth part of the Netherlands is located below sea level. While the country is being protected from floods by protective dams;
Hamburg also uses dams to protect against floods, which occur regularly in Germany’s second largest city. Hamburg can go underwater if the sea level rises by 2.5 meters.
The level of 2.5 meters is critical for St. Petersburg, Russia as well;
Los Angeles will be at risk of flooding if the level of the ocean rises by 3 meters;
The same 3 meters, according to climatologists, can completely flood the New York area of Lower Manhattan;
The aftermath of Hurricane Sandy, which caused floods and severe destruction in America, forced the New York authorities to adopt a plan to protect the city from storms and the effects of warming, which would cost almost $ 20 billion;
Most of New Orleans is below sea level. The city is protected by dams, but they could not help residents when in 2005 they were hit by a hurricane Katrina. Hundreds of thousands of people who left after New Orleans, can be considered the first in the US climate refugees. In the future, due to rising sea level, the situation can only worsen;
Most of London, especially in the south and east, is located on the swamp. Therefore, even a slight increase in sea level increases the risk of serious flooding in the Thames delta;
Now in London there is the so-called “Thames Barrier”, which protects the city from tides. A new problem may be the rising water level in the upper Thames, which affects the entire suburb of London;
The average height of Shanghai above sea level is 6.5 meters. However, part of the city is located in the lowlands, where about 5.5 million people live, which will suffer in case of rising water levels. The authorities only recently began to think about protecting the city from floods. Shanghai is not the only city of China, which is threatened by flooding. The vast territories of cities such as Guangzhou and Hong Kong are located below sea level.

What can we do to stop or slow down climate change?

According to scientists, it is unlikely to completely stop the climate change to mankind. However, the international community is able to contain the temperature increase in order to avoid irreversible environmental consequences. To do this, it is necessary to limit greenhouse gas emissions, develop alternative energy and develop a strategy to reduce risks due to warming.

What can an ordinary person do to slow down climate change?

Adapting the life of society to new conditions

Plans to minimize damage from climate change should cover all areas of human activities, including health, agriculture and infrastructure.

In cold areas, for example, you need to change the storm sewage system, prepare for storm winds (recalculate the strength of structures), change the fire-fighting system – droughts increase the fire hazard.

However, different states have different opportunities to level out the impact of climate change. For example, Holland and Bangladesh experience the same problems: there are more storms, the ocean level has risen. But in Holland there is already a plan of action, they know how they will strengthen the dams, where they will take the funds. And in Bangladesh, there is nothing of this. Thus, most of the measures needed for adaptation are simple and straightforward, but they require tools and effective planning.

Reducing greenhouse gas emissions

According to climatologists, in order to keep the temperature rise up to 2° C, countries need to halve global emissions by 2050 in relation to the level of 1990 by 2050, and to the end of the 21st century – to zero.

According to PwC analysts, since 2000, on average, Britain has reduced carbon dioxide emissions by 3% per year, France by 2.7%, the USA by 2.3%. The average annual reduction in carbon emissions over the past 15 years was 1.3%.

However, these efforts are not enough. To prevent irreversible climate change, the annual reduction of carbon dioxide emissions up to 2100 should be at least 6.3%.

This means, on the one hand, it is necessary to introduce energy-saving technologies, on the other – to switch to alternative energy sources.

Conclusion to the climate change essay example

To sum up the information given above, let’s repeat the main threats related to warming:

Increase in the frequency, intensity and duration of droughts in some regions, extreme precipitation, floods, cases of unsafe soil for agriculture – in others;
Increase of fire danger in forests and peat bogs;
violation of the habitual way of life of indigenous northern peoples;
degradation of permafrost with damage to buildings and communications;
violation of ecological balance, displacement of some biological species by others;
increase in electricity consumption for air conditioning in the summer season for a large country.

Even in the worst situation, there are some positive changes:

warming in the Arctic will increase the duration of navigation along the Northern Sea Route and facilitate the development of oil and gas deposits on the shelf;
the heating season will decrease, and, accordingly, the energy consumption will decrease;
the northern boundary of agriculture will shift to the north, due to which the area of agricultural land will grow, especially in Western Siberia and the Urals.

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Steps To Follow While Writing An Essay On Climate Change

Table of Contents

Climate change is the most essential issue of our generation; we are the first to witness its early signs and the last who have a chance of stopping them from happening.

Living in a bubble of denial can only get us this far; the planet which is our home is already a scene for melting glaciers, raising floods, extinction of species… the list goes on and on. Spreading awareness on matters of climate change through any means available, including as seemingly trivial form as writing a school essay, cannot be underestimated.

Follow the guidelines suggested in the paragraphs below to learn how to create a perfect essay that will get you an appraisal of your teacher.

Essay on climate changes: how to write?

If you really want to make your teacher gasp while they are reading your work, there are three vital things to pay attention to .

First of all, read the topic carefully and understand it’s specific, i.e., what is expected from you.

For instance, if it is the role of individuals in helping prevent climate change, you should not focus so much on the global problems, but speak about how small changes all of us can introduce in our routines will eventually have a positive environmental effect.

Secondly, determine your personal take on the problem . Search for materials on your subject using keywords, and pile up the evidence that supports your point of view.

Finally, write a conclusion. Make sure that the conclusion you make reflects the viewpoints you have been expressing all throughout your essay.

Below you will find a more detailed breakdown of tasks you will have to accomplish to complete writing an essay on climate changes that is worthy of a top mark.

Check if it is an argumentative essay on climate change or more of a speculative one? Arrange your writing accordingly.

Craft the outline and don’t go off-topic.
Search for keywords .
Make a plan .
Avoid the most common mistakes from the start.
Write an introduction thinking about what you will write later.
Develop your ideas according to the outline .
Make a conclusion which is consistent with what you’ve written in the main paragraphs.
Proofread the draft , correct mistakes and print out the hard copy. All set!

One of the most focal of your writing will be factual evidence. When writing on climate change, resort to providing data shared by international organizations like IPCC , WWF , or World Bank .

It is undeniable that among the main causes of climate change, unfortunately, there are oil and fossil fuels that are the basis of the whole economy and still invaluable sources of energy.

Although everyone knows that oil resources are polluting and that it would be much more useful and environmentally sustainable to rely on renewable energies such as wind and solar energies and electricity, the power of the world seem not to notice or pretend not to see for don’t go against your own interests.

The time has come to react and raise awareness of the use of renewable energy sources.

In addition to the causes already mentioned, we must consider the increase in the carbon dioxide air that traps heat in our atmosphere, thus increasing the temperatures with the consequent of the Arctic glaciers melting.

WWF reported that in 2016, the recorded data was quite worrying with a constant increase in temperatures and a 40% decrease in Arctic marine glaciers.

Topics for essay on global warming and climate change

If you do not have any specific topic to write on, consider yourself lucky. You can pick one that you are passionate about – and in fact, this is what you should do! If we think back to the very definition of essay, it is nothing more than a few paragraphs of expressing one’s personal attitude and viewpoints on a certain subject. Surely, you need to pick a subject that you are opinionated about to deliver a readable piece of writing!

Another point to consider is quaintness and topicality factors. You don’t want to end up writing on a subject that the rest of your class will, and in all honesty, that has zero novelty to it.

Even if it is something as trivial as the greenhouse effect, add an unexpected perspective to it: the greenhouse effect from the standpoint of the feline population of Montenegro. Sounds lunatic, but you get the drift.

Do not worry, below you will find the list of legitimately coverable topics to choose from:

The last generation able to fight the global crisis.
Climate change: top 10 unexpected causes.
Climate changes. Things anyone can do.
Climate changes concern everyone. Is it true?
The Mauna Loa volcano: climate change is here.
Water pollution and coastal cities: what needs to be done?
Is there global warming if it’s still cold?
The CO2 concentration in the atmosphere.
Celebrity activists and climate changes.
Individual responsibility for the environment.
How the loss of biodiversity is the biggest loss for humanity.
Ways to fight global warming at home.
Sustainable living as a way of fighting climate change.
Climate change fighting countries to look up to.
Industrial responsibility and climate change.
What future will be like if we fail to make an environmental stand?
Discovering water on Mars: a new planet to live on?
Climate change effects on poor countries.
Nuclear power laws and climate change.
Is it true that climate change is caused by man?

Mistakes to avoid when writing an essay on climate change

When composing your essay, you must avoid the following (quite common!) mistakes:

Clichés – no one wants to read universal truths presented as relevant discoveries.
Repeating an idea already expressed – don’t waste your readers’ time .
Making an accumulation of ideas that are not connected and that do not follow one another; structure your ideas logically .
Being contradictive (check consistency).
Using bad or tired collocations .
Using lackluster adjectives like “good”/”bad”. Instead, think of more eye-catching synonyms.

Structure your essay in a logical way : introduce your thesis, develop your ideas in at least 2 parts that contain several paragraphs, and draw a conclusion.

Bottom line

Writing an essay on global warming and climate change is essentially reflecting on the inevitable consequence of the irresponsible behavior of people inhabiting the planet. Outside of big-scale thinking, there is something each of us can do, and by shaping minds the right way, essential change can be done daily.

Each of us can act to protect the environment, reducing the use of plastic, recycling, buying food with as little packaging as possible, or turning off water and light when not in use. Every little help, even a short essay on climate change can help make a difference.

Can’t wait to save the planet? Do it, while we write your essay. Easy order, complete confidentiality, timely delivery. Click the button to learn more!

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Essay on Global Warming

Updated on
Apr 27, 2024

Being able to write an essay is an integral part of mastering any language. Essays form an integral part of many academic and scholastic exams like the SAT, and UPSC amongst many others. It is a crucial evaluative part of English proficiency tests as well like IELTS, TOEFL, etc. Major essays are meant to emphasize public issues of concern that can have significant consequences on the world. To understand the concept of Global Warming and its causes and effects, we must first examine the many factors that influence the planet’s temperature and what this implies for the world’s future. Here’s an unbiased look at the essay on Global Warming and other essential related topics.

Short Essay on Global Warming and Climate Change?

Since the industrial and scientific revolutions, Earth’s resources have been gradually depleted. Furthermore, the start of the world’s population’s exponential expansion is particularly hard on the environment. Simply put, as the population’s need for consumption grows, so does the use of natural resources , as well as the waste generated by that consumption.

Climate change has been one of the most significant long-term consequences of this. Climate change is more than just the rise or fall of global temperatures; it also affects rain cycles, wind patterns, cyclone frequencies, sea levels, and other factors. It has an impact on all major life groupings on the planet.

What is Global Warming?

Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century, primarily due to the greenhouse gases released by people burning fossil fuels . The greenhouse gases consist of methane, nitrous oxide, ozone, carbon dioxide, water vapour, and chlorofluorocarbons. The weather prediction has been becoming more complex with every passing year, with seasons more indistinguishable, and the general temperatures hotter.

The number of hurricanes, cyclones, droughts, floods, etc., has risen steadily since the onset of the 21st century. The supervillain behind all these changes is Global Warming. The name is quite self-explanatory; it means the rise in the temperature of the Earth.

What are the Causes of Global Warming?

According to recent studies, many scientists believe the following are the primary four causes of global warming:

Deforestation
Greenhouse emissions
Carbon emissions per capita

Extreme global warming is causing natural disasters , which can be seen all around us. One of the causes of global warming is the extreme release of greenhouse gases that become trapped on the earth’s surface, causing the temperature to rise. Similarly, volcanoes contribute to global warming by spewing excessive CO2 into the atmosphere.

The increase in population is one of the major causes of Global Warming. This increase in population also leads to increased air pollution . Automobiles emit a lot of CO2, which remains in the atmosphere. This increase in population is also causing deforestation, which contributes to global warming.

The earth’s surface emits energy into the atmosphere in the form of heat, keeping the balance with the incoming energy. Global warming depletes the ozone layer, bringing about the end of the world. There is a clear indication that increased global warming will result in the extinction of all life on Earth’s surface.

Also Read: Land, Soil, Water, Natural Vegetation, and Wildlife Resources

Solutions for Global Warming

Of course, industries and multinational conglomerates emit more carbon than the average citizen. Nonetheless, activism and community effort are the only viable ways to slow the worsening effects of global warming. Furthermore, at the state or government level, world leaders must develop concrete plans and step-by-step programmes to ensure that no further harm is done to the environment in general.

Although we are almost too late to slow the rate of global warming, finding the right solution is critical. Everyone, from individuals to governments, must work together to find a solution to Global Warming. Some of the factors to consider are pollution control, population growth, and the use of natural resources.

One very important contribution you can make is to reduce your use of plastic. Plastic is the primary cause of global warming, and recycling it takes years. Another factor to consider is deforestation, which will aid in the control of global warming. More tree planting should be encouraged to green the environment. Certain rules should also govern industrialization. Building industries in green zones that affect plants and species should be prohibited.

Effects of Global Warming

Global warming is a real problem that many people want to disprove to gain political advantage. However, as global citizens, we must ensure that only the truth is presented in the media.

This decade has seen a significant impact from global warming. The two most common phenomena observed are glacier retreat and arctic shrinkage. Glaciers are rapidly melting. These are clear manifestations of climate change.

Another significant effect of global warming is the rise in sea level. Flooding is occurring in low-lying areas as a result of sea-level rise. Many countries have experienced extreme weather conditions. Every year, we have unusually heavy rain, extreme heat and cold, wildfires, and other natural disasters.

Similarly, as global warming continues, marine life is being severely impacted. This is causing the extinction of marine species as well as other problems. Furthermore, changes are expected in coral reefs, which will face extinction in the coming years. These effects will intensify in the coming years, effectively halting species expansion. Furthermore, humans will eventually feel the negative effects of Global Warming.

Also Read: Concept of Sustainable Development

Sample Essays on Global Warming

Here are some sample essays on Global Warming:

Essay on Global Warming Paragraph in 100 – 150 words

Global Warming is caused by the increase of carbon dioxide levels in the earth’s atmosphere and is a result of human activities that have been causing harm to our environment for the past few centuries now. Global Warming is something that can’t be ignored and steps have to be taken to tackle the situation globally. The average temperature is constantly rising by 1.5 degrees Celsius over the last few years.

The best method to prevent future damage to the earth, cutting down more forests should be banned and Afforestation should be encouraged. Start by planting trees near your homes and offices, participate in events, and teach the importance of planting trees. It is impossible to undo the damage but it is possible to stop further harm.

Essay on Global Warming in 250 Words

Over a long period, it is observed that the temperature of the earth is increasing. This affected wildlife, animals, humans, and every living organism on earth. Glaciers have been melting, and many countries have started water shortages, flooding, and erosion and all this is because of global warming.

No one can be blamed for global warming except for humans. Human activities such as gases released from power plants, transportation, and deforestation have increased gases such as carbon dioxide, CFCs, and other pollutants in the earth’s atmosphere. The main question is how can we control the current situation and build a better world for future generations. It starts with little steps by every individual.

Start using cloth bags made from sustainable materials for all shopping purposes, instead of using high-watt lights use energy-efficient bulbs, switch off the electricity, don’t waste water, abolish deforestation and encourage planting more trees. Shift the use of energy from petroleum or other fossil fuels to wind and solar energy. Instead of throwing out the old clothes donate them to someone so that it is recycled.

Donate old books, don’t waste paper. Above all, spread awareness about global warming. Every little thing a person does towards saving the earth will contribute in big or small amounts. We must learn that 1% effort is better than no effort. Pledge to take care of Mother Nature and speak up about global warming.

Essay on Global Warming in 500 Words

Global warming isn’t a prediction, it is happening! A person denying it or unaware of it is in the most simple terms complicit. Do we have another planet to live on? Unfortunately, we have been bestowed with this one planet only that can sustain life yet over the years we have turned a blind eye to the plight it is in. Global warming is not an abstract concept but a global phenomenon occurring ever so slowly even at this moment. Global Warming is a phenomenon that is occurring every minute resulting in a gradual increase in the Earth’s overall climate. Brought about by greenhouse gases that trap the solar radiation in the atmosphere, global warming can change the entire map of the earth, displacing areas, flooding many countries, and destroying multiple lifeforms. Extreme weather is a direct consequence of global warming but it is not an exhaustive consequence. There are virtually limitless effects of global warming which are all harmful to life on earth. The sea level is increasing by 0.12 inches per year worldwide. This is happening because of the melting of polar ice caps because of global warming. This has increased the frequency of floods in many lowland areas and has caused damage to coral reefs. The Arctic is one of the worst-hit areas affected by global warming. Air quality has been adversely affected and the acidity of the seawater has also increased causing severe damage to marine life forms. Severe natural disasters are brought about by global warming which has had dire effects on life and property. As long as mankind produces greenhouse gases, global warming will continue to accelerate. The consequences are felt at a much smaller scale which will increase to become drastic shortly. The power to save the day lies in the hands of humans, the need is to seize the day. Energy consumption should be reduced on an individual basis. Fuel-efficient cars and other electronics should be encouraged to reduce the wastage of energy sources. This will also improve air quality and reduce the concentration of greenhouse gases in the atmosphere. Global warming is an evil that can only be defeated when fought together. It is better late than never. If we all take steps today, we will have a much brighter future tomorrow. Global warming is the bane of our existence and various policies have come up worldwide to fight it but that is not enough. The actual difference is made when we work at an individual level to fight it. Understanding its import now is crucial before it becomes an irrevocable mistake. Exterminating global warming is of utmost importance and each one of us is as responsible for it as the next.

Also Read: Essay on Library: 100, 200 and 250 Words

Essay on Global Warming UPSC

Always hear about global warming everywhere, but do we know what it is? The evil of the worst form, global warming is a phenomenon that can affect life more fatally. Global warming refers to the increase in the earth’s temperature as a result of various human activities. The planet is gradually getting hotter and threatening the existence of lifeforms on it. Despite being relentlessly studied and researched, global warming for the majority of the population remains an abstract concept of science. It is this concept that over the years has culminated in making global warming a stark reality and not a concept covered in books. Global warming is not caused by one sole reason that can be curbed. Multifarious factors cause global warming most of which are a part of an individual’s daily existence. Burning of fuels for cooking, in vehicles, and for other conventional uses, a large amount of greenhouse gases like carbon dioxide, and methane amongst many others is produced which accelerates global warming. Rampant deforestation also results in global warming as lesser green cover results in an increased presence of carbon dioxide in the atmosphere which is a greenhouse gas. Finding a solution to global warming is of immediate importance. Global warming is a phenomenon that has to be fought unitedly. Planting more trees can be the first step that can be taken toward warding off the severe consequences of global warming. Increasing the green cover will result in regulating the carbon cycle. There should be a shift from using nonrenewable energy to renewable energy such as wind or solar energy which causes less pollution and thereby hinder the acceleration of global warming. Reducing energy needs at an individual level and not wasting energy in any form is the most important step to be taken against global warming. The warning bells are tolling to awaken us from the deep slumber of complacency we have slipped into. Humans can fight against nature and it is high time we acknowledged that. With all our scientific progress and technological inventions, fighting off the negative effects of global warming is implausible. We have to remember that we do not inherit the earth from our ancestors but borrow it from our future generations and the responsibility lies on our shoulders to bequeath them a healthy planet for life to exist.

Climate Change and Global Warming Essay

Global Warming and Climate Change are two sides of the same coin. Both are interrelated with each other and are two issues of major concern worldwide. Greenhouse gases released such as carbon dioxide, CFCs, and other pollutants in the earth’s atmosphere cause Global Warming which leads to climate change. Black holes have started to form in the ozone layer that protects the earth from harmful ultraviolet rays.

Human activities have created climate change and global warming. Industrial waste and fumes are the major contributors to global warming.

Another factor affecting is the burning of fossil fuels, deforestation and also one of the reasons for climate change. Global warming has resulted in shrinking mountain glaciers in Antarctica, Greenland, and the Arctic and causing climate change. Switching from the use of fossil fuels to energy sources like wind and solar.

When buying any electronic appliance buy the best quality with energy savings stars. Don’t waste water and encourage rainwater harvesting in your community.

Tips to Write an Essay

Writing an effective essay needs skills that few people possess and even fewer know how to implement. While writing an essay can be an assiduous task that can be unnerving at times, some key pointers can be inculcated to draft a successful essay. These involve focusing on the structure of the essay, planning it out well, and emphasizing crucial details.

Mentioned below are some pointers that can help you write better structure and more thoughtful essays that will get across to your readers:

Prepare an outline for the essay to ensure continuity and relevance and no break in the structure of the essay
Decide on a thesis statement that will form the basis of your essay. It will be the point of your essay and help readers understand your contention
Follow the structure of an introduction, a detailed body followed by a conclusion so that the readers can comprehend the essay in a particular manner without any dissonance.
Make your beginning catchy and include solutions in your conclusion to make the essay insightful and lucrative to read
Reread before putting it out and add your flair to the essay to make it more personal and thereby unique and intriguing for readers

Also Read: I Love My India Essay: 100 and 500+ Words in English for School Students

Ans. Both natural and man-made factors contribute to global warming. The natural one also contains methane gas, volcanic eruptions, and greenhouse gases. Deforestation, mining, livestock raising, burning fossil fuels, and other man-made causes are next.

Ans. The government and the general public can work together to stop global warming. Trees must be planted more often, and deforestation must be prohibited. Auto usage needs to be curbed, and recycling needs to be promoted.

Ans. Switching to renewable energy sources , adopting sustainable farming, transportation, and energy methods, and conserving water and other natural resources.

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Digvijay Singh

Having 2+ years of experience in educational content writing, withholding a Bachelor's in Physical Education and Sports Science and a strong interest in writing educational content for students enrolled in domestic and foreign study abroad programmes. I believe in offering a distinct viewpoint to the table, to help students deal with the complexities of both domestic and foreign educational systems. Through engaging storytelling and insightful analysis, I aim to inspire my readers to embark on their educational journeys, whether abroad or at home, and to make the most of every learning opportunity that comes their way.

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Our Future Is Now - A Climate Change Essay by Francesca Minicozzi, '21

Francesca Minicozzi (class of 2021) is a Writing/Biology major who plans to study medicine after graduation. She wrote this essay on climate change for WR 355/Travel Writing, which she took while studying abroad in Newcastle in spring 2020. Although the coronavirus pandemic curtailed Francesca’s time abroad, her months in Newcastle prompted her to learn more about climate change. Terre Ryan Associate Professor, Writing Department

Our Future Is Now

By Francesca Minicozzi, '21 Writing and Biology Major

“If you don’t mind me asking, how is the United States preparing for climate change?” my flat mate, Zac, asked me back in March, when we were both still in Newcastle. He and I were accustomed to asking each other about the differences between our home countries; he came from Cambridge, while I originated in Long Island, New York. This was one of our numerous conversations about issues that impact our generation, which we usually discussed while cooking dinner in our communal kitchen. In the moment of our conversation, I did not have as strong an answer for him as I would have liked. Instead, I informed him of the few changes I had witnessed within my home state of New York.

Zac’s response was consistent with his normal, diplomatic self. “I have been following the BBC news in terms of the climate crisis for the past few years. The U.K. has been working hard to transition to renewable energy sources. Similar to the United States, here in the United Kingdom we have converted over to solar panels too. My home does not have solar panels, but a lot of our neighbors have switched to solar energy in the past few years.”

“Our two countries are similar, yet so different,” I thought. Our conversation continued as we prepared our meals, with topics ranging from climate change to the upcoming presidential election to Britain’s exit from the European Union. However, I could not shake the fact that I knew so little about a topic so crucial to my generation.

After I abruptly returned home from the United Kingdom because of the global pandemic, my conversation with my flat mate lingered in my mind. Before the coronavirus surpassed climate change headlines, I had seen the number of internet postings regarding protests to protect the planet dramatically increase. Yet the idea of our planet becoming barren and unlivable in a not-so-distant future had previously upset me to the point where a part of me refused to deal with it. After I returned from studying abroad, I decided to educate myself on the climate crisis.

My quest for climate change knowledge required a thorough understanding of the difference between “climate change” and “global warming.” Climate change is defined as “a pattern of change affecting global or regional climate,” based on “average temperature and rainfall measurements” as well as the frequency of extreme weather events. 1 These varied temperature and weather events link back to both natural incidents and human activity. 2 Likewise, the term global warming was coined “to describe climate change caused by humans.” 3 Not only that, but global warming is most recently attributed to an increase in “global average temperature,” mainly due to greenhouse gas emissions produced by humans. 4

I next questioned why the term “climate change” seemed to take over the term “global warming” in the United States. According to Frank Luntz, a leading Republican consultant, the term “global warming” functions as a rather intimidating phrase. During George W. Bush’s first presidential term, Luntz argued in favor of using the less daunting phrase “climate change” in an attempt to overcome the environmental battle amongst Democrats and Republicans. 5 Since President Bush’s term, Luntz remains just one political consultant out of many politicians who has recognized the need to address climate change. In an article from 2019, Luntz proclaimed that political parties aside, the climate crisis affects everyone. Luntz argued that politicians should steer clear of trying to communicate “the complicated science of climate change,” and instead engage voters by explaining how climate change personally impacts citizens with natural disasters such as hurricanes, tornadoes, and forest fires. 6 He even suggested that a shift away from words like “sustainability” would gear Americans towards what they really want: a “cleaner, safer, healthier” environment. 7

The idea of a cleaner and heathier environment remains easier said than done. The Paris Climate Agreement, introduced in 2015, began the United Nations’ “effort to combat global climate change.” 8 This agreement marked a global initiative to “limit global temperature increase in this century to 2 degrees Celsius above preindustrial levels,” while simultaneously “pursuing means to limit the increase to 1.5 degrees.” 9 Every country on earth has joined together in this agreement for the common purpose of saving our planet. 10 So, what could go wrong here? As much as this sounds like a compelling step in the right direction for climate change, President Donald Trump thought otherwise. In June 2017, President Trump announced the withdrawal of the United States from the Paris Agreement with his proclamation of climate change as a “’hoax’ perpetrated by China.” 11 President Trump continued to question the scientific facts behind climate change, remaining an advocate for the expansion of domestic fossil fuel production. 12 He reversed environmental policies implemented by former President Barack Obama to reduce fossil fuel use. 13

Trump’s actions against the Paris Agreement, however, fail to represent the beliefs of Americans as a whole. The majority of American citizens feel passionate about the fight against climate change. To demonstrate their support, some have gone as far as creating initiatives including America’s Pledge and We Are Still In. 14 Although the United States officially exited the Paris Agreement on November 4, 2020, this withdrawal may not survive permanently. 15 According to experts, our new president “could rejoin in as short as a month’s time.” 16 This offers a glimmer of hope.

The Paris Agreement declares that the United States will reduce greenhouse gas emission levels by 26 to 28 percent by the year 2025. 17 As a leader in greenhouse gas emissions, the United States needs to accept the climate crisis for the serious challenge that it presents and work together with other nations. The concept of working coherently with all nations remains rather tricky; however, I remain optimistic. I think we can learn from how other countries have adapted to the increased heating of our planet. During my recent study abroad experience in the United Kingdom, I was struck by Great Britain’s commitment to combating climate change.

Since the United Kingdom joined the Paris Agreement, the country targets a “net-zero” greenhouse gas emission for 2050. 18 This substantial alteration would mark an 80% reduction of greenhouse gases from 1990, if “clear, stable, and well-designed policies are implemented without interruption.” 19 In order to stay on top of reducing emissions, the United Kingdom tracks electricity and car emissions, “size of onshore and offshore wind farms,” amount of homes and “walls insulated, and boilers upgraded,” as well as the development of government policies, including grants for electric vehicles. 20 A strong grip on this data allows the United Kingdom to target necessary modifications that keep the country on track for 2050. In my brief semester in Newcastle, I took note of these significant changes. The city of Newcastle is small enough that many students and faculty are able to walk or bike to campus and nearby essential shops. However, when driving is unavoidable, the majority of the vehicles used are electric, and many British citizens place a strong emphasis on carpooling to further reduce emissions. The United Kingdom’s determination to severely reduce greenhouse emissions is ambitious and particularly admirable, especially as the United States struggles to shy away from its dependence on fossil fuels.

So how can we, as Americans, stand together to combat global climate change? Here are five adjustments Americans can make to their homes and daily routines that can dramatically make a difference:

Stay cautious of food waste. Studies demonstrate that “Americans throw away up to 40 percent of the food they buy.” 21 By being more mindful of the foods we purchase, opting for leftovers, composting wastes, and donating surplus food to those in need, we can make an individual difference that impacts the greater good. 22
Insulate your home. Insulation functions as a “cost-effective and accessible” method to combat climate change. 23 Homes with modern insulation reduce energy required to heat them, leading to a reduction of emissions and an overall savings; in comparison, older homes can “lose up to 35 percent of heat through their walls.” 24
Switch to LED Lighting. LED stands for “light-emitting diodes,” which use “90 percent less energy than incandescent bulbs and half as much as compact fluorescents.” 25 LED lights create light without producing heat, and therefore do not waste energy. Additionally, these lights have a longer duration than other bulbs, which means they offer a continuing savings. 26
Choose transportation wisely. Choose to walk or bike whenever the option presents itself. If walking or biking is not an option, use an electric or hybrid vehicle which emits less harmful gases. Furthermore, reduce the number of car trips taken, and carpool with others when applicable.
Finally, make your voice heard. The future of our planet remains in our hands, so we might as well use our voices to our advantage. Social media serves as a great platform for this. Moreover, using social media to share helpful hints to combat climate change within your community or to promote an upcoming protest proves beneficial in the long run. If we collectively put our voices to good use, together we can advocate for change.

As many of us are stuck at home due to the COVID-19 pandemic, these suggestions are slightly easier to put into place. With numerous “stay-at-home” orders in effect, Americans have the opportunity to make significant achievements for climate change. Personally, I have taken more precautions towards the amount of food consumed within my household during this pandemic. I have been more aware of food waste, opting for leftovers when too much food remains. Additionally, I have realized how powerful my voice is as a young college student. Now is the opportunity for Americans to share how they feel about climate change. During this unprecedented time, our voice is needed now more than ever in order to make a difference.

However, on a much larger scale, the coronavirus outbreak has shed light on reducing global energy consumption. Reductions in travel, both on the roads and in the air, have triggered a drop in emission rates. In fact, the International Energy Agency predicts a 6 percent decrease in energy consumption around the globe for this year alone. 27 This drop is “equivalent to losing the entire energy demand of India.” 28 Complete lockdowns have lowered the global demand for electricity and slashed CO2 emissions. However, in New York City, the shutdown has only decreased carbon dioxide emissions by 10 percent. 29 This proves that a shift in personal behavior is simply not enough to “fix the carbon emission problem.” 30 Climate policies aimed to reduce fossil fuel production and promote clean technology will be crucial steppingstones to ameliorating climate change effects. Our current reduction of greenhouse gas emissions serves as “the sort of reduction we need every year until net-zero emissions are reached around 2050.” 31 From the start of the coronavirus pandemic, politicians came together for the common good of protecting humanity; this demonstrates that when necessary, global leaders are capable of putting humankind above the economy. 32

After researching statistics comparing the coronavirus to climate change, I thought back to the moment the virus reached pandemic status. I knew that a greater reason underlay all of this global turmoil. Our globe is in dire need of help, and the coronavirus reminds the world of what it means to work together. This pandemic marks a turning point in global efforts to slow down climate change. The methods we enact towards not only stopping the spread of the virus, but slowing down climate change, will ultimately depict how humanity will arise once this pandemic is suppressed. The future of our home planet lies in how we treat it right now.

“Climate Change: What Do All the Terms Mean?,” BBC News (BBC, May 1, 2019), https://www.bbc.com/news/science-environment-48057733 )
Ibid.
Kate Yoder, “Frank Luntz, the GOP's Message Master, Calls for Climate Action,” Grist (Grist, July 26, 2019), https://grist.org/article/the-gops-most-famous-messaging-strategist-calls-for-climate-action
Melissa Denchak, “Paris Climate Agreement: Everything You Need to Know,” NRDC, April 29, 2020, https://www.nrdc.org/stories/paris-climate-agreement-everything-you-need-know)
“Donald J. Trump's Foreign Policy Positions,” Council on Foreign Relations (Council on Foreign Relations), accessed May 7, 2020, https://www.cfr.org/election2020/candidate-tracker/donald-j.-trump?gclid=CjwKCAjw4871BRAjEiwAbxXi21cneTRft_doA5if60euC6QCL7sr-Jwwv76IkgWaUTuyJNx9EzZzRBoCdjsQAvD_BwE#climate and energy )
David Doniger, “Paris Climate Agreement Explained: Does Congress Need to Sign Off?,” NRDC, December 15, 2016, https://www.nrdc.org/experts/david-doniger/paris-climate-agreement-explained-does-congress-need-sign )
“How the UK Is Progressing,” Committee on Climate Change, March 9, 2020, https://www.theccc.org.uk/what-is-climate-change/reducing-carbon-emissions/how-the-uk-is-progressing/)
Ibid.
“Top 10 Ways You Can Fight Climate Change,” Green America, accessed May 7, 2020, https://www.greenamerica.org/your-green-life/10-ways-you-can-fight-climate-change )
Matt McGrath, “Climate Change and Coronavirus: Five Charts about the Biggest Carbon Crash,” BBC News (BBC, May 5, 2020), https://www.bbc.com/news/amp/science-environment-52485712 )

Introductory essay

Written by the educators who created Climate Change, a brief look at the key facts, tough questions and big ideas in their field. Begin this TED Study with a fascinating read that gives context and clarity to the material.

The greenhouse effect has been detected, and it is changing our climate now. James Hansen, June 24, 1988

The drought that crippled much of the U.S. and Canada in 1988-89 was the costliest natural disaster in U.S. history prior to Hurricane Katrina. It spawned dust storms in the Midwest and forest fires in Yellowstone National Park. That summer, thousands died during an intense heat wave.

It was against this backdrop, on a 101-degree day in the nation's capital, that NASA scientist James Hansen delivered his landmark testimony to the Senate Energy and Natural Resources Committee. The next day, The New York Times ran a headline that read "Global Warming Has Begun, Expert Warns." Coverage of Hansen's testimony by the Times and other national and global media organizations transformed climate change from a relatively obscure scientific topic to one that people began to discuss over dinner, in the pub, at school and at work.

It remained newsworthy over the rest of that pivotal year. Days after Hansen's testimony, the World Meteorological Association (WMO) hosted a conference called "Our Changing Atmosphere," one of the earliest international climate change gatherings. 300 scientists and policy makers representing 46 countries attended. Participants called upon countries to reduce carbon dioxide emissions by 20 percent or more by 2005, and by the end of the year the WMO and the United Nations Environment Program had established the Intergovernmental Panel on Climate Change (IPCC).

British Prime Minister Margaret Thatcher famously became one of the first world leaders to talk about climate change in a speech delivered that September to the Royal Society. "For generations, we have assumed that the efforts of mankind would leave the fundamental equilibrium of the world's systems and atmosphere stable," remarked Thatcher. "But it is possible that… we have unwittingly begun a massive experiment with the system of this planet itself." In this speech and others she gave during the remainder of her tenure, Thatcher advocated for expanded climate research and for policies that would safeguard the environment and promote sustainable development.

As global public awareness of the issue grew in the 1980s and beyond, the science and its significance were vigorously debated. Is there credible evidence that climate change is real? If it's real, when and how will we feel its effects? If it's real, what should be done, and who should do it? (Thatcher herself reversed position many years later, calling climate change "the doomsters' favorite subject" predicated on science that is "extremely obscure" and leading to "worldwide, supra-national socialism.")

Climate change is still hotly contested and the debate is often shrill, with skeptics branded as "climate deniers" and activists derisively labeled "warmists." Tensions are palpable, as when nearly 800 NGO representatives walked out of the 2013 international climate negotiations in Poland.

How has climate change become so politicized? It requires us to tackle thorny ethical and economic dilemmas, like how the least developed nations will cope with the effects of climate change and who should help them. It highlights serious structural issues like how to reckon with entrenched carbon-based industry interests and the connected yet complex resistances to decarbonization efforts. It calls for global governmental collaboration on an unprecedented scale. Atmospheric chemist Rachel Pike comments, "It goes, of course, to the top of our sky, but it goes to the bottom of the ocean, to every corner of the globe. It's every nation, every people. It's political, it's economic, it requires debate; it's scientific, it's engineering. It's the biggest problem you could ever imagine." It's no surprise, then, that climate change prompts a range of individual psychological and collective societal responses—avoidance, fatalism, denial, paralysis and wishful thinking, to name a few.

It's also not surprising that the scientific evidence is contested, given that the indicators of climate change -- like changing precipitation patterns over decadal time scales -- may be difficult for ordinary citizens to detect, and given what's at stake once we acknowledge that those indicators are correct. Initially -- and even today, despite the fact that we've reached the gold standard for scientific certainty -- some have questioned the quantity and quality of the evidence, feeding the public's perception that the science is half-baked. In reality, by the time Hansen delivered his congressional testimony in 1988, he'd been researching the relationship between atmospheric components and temperature since the 1960s, building upon a line of scientific inquiry stretching back at least a century.

A crash course on climate science

During the previous century, French physicist Joseph Fourier (1821) and Irish physicist John Tyndall (1861) described the Earth's natural "greenhouse effect" whereby water vapor and other gases in the atmosphere regulate the planet's surface temperatures. By the end of the 1800s, Swedish chemist Svante Arrhenius had made the prediction that industrialized coal-burning would intensify the natural greenhouse effect. Remarkably, when Arrhenius calculated the quantitative effects on temperature his results were relatively close to what's predicted by modern climate change models.

In the 1930s, British engineer and citizen scientist Guy Callendar demonstrated that global temperatures were rising, using data from more than 140 weather stations around the world. Callendar argued that rising CO2 levels were to blame, but his hypothesis failed to gain widespread acceptance in the scientific community. Two decades later, American researcher Gilbert Plass analyzed the infrared absorption of various gases and created the early computational models suggesting that a 3- to 4-degree rise in temperature would result from doubling the concentration of atmospheric CO2. For the scientists aware of Plass's work, Dave Keeling's findings a few years later were undoubtedly unsettling: the American geochemist provided the first unequivocal proof that atmospheric CO2 levels were increasing, based on analysis of atmospheric samples he collected at the Mauna Loa Observatory in Hawaii.

Many scientists assumed that the world's oceans would absorb the extra atmospheric CO2 that human industry was producing, until American oceanographer Roger Revelle and chemist Hans Suess demonstrated otherwise. The authors of a 1957 National Academy of Sciences climatology report quoted Revelle: "In consuming our fossil fuels at a prodigious rate, our civilization is conducting a grandiose scientific experiment."

Revelle's subsequent testimony before a Congressional committee helped put climate change on the radar of elected officials. In 1965, a presidential advisory panel warned that the greenhouse effect was a "real concern," and the U.S. government's engagement deepened when Nixon established the National Oceanic and Atmospheric Administration (NOAA) in 1970. Political and scientific interest in climate change grew during the ‘70s, culminating in the First World Climate Conference sponsored by the WMO in 1979. The Second World Climate Conference a decade later paved the way for the United Nations Conference on Environment and Development (UNCED) in 1992, where the United Nations Framework Convention on Climate Change (UNFCCC) was launched and the groundwork laid for subsequent international climate change negotiations.

The challenge of communicating climate change

The task of translating climate research for policymakers and the general public has been hampered by multiple definitions of climate change within and outside of the scientific community. As Roger Pielke Jr. argued in his 2005 article " Misdefining climate change: Consequences for science and action ," definitions used by the UNFCCC, IPCC and others profoundly influence public opinion and the range of probable policy choices. Additionally, the conflation of "climate change," "global warming" and "the greenhouse effect" in news coverage has fueled public confusion about how to diagnose and treat the problem. For our purposes here, "climate change" is any change in climate over time due to natural variability or as a result of human activity. This is consistent with the IPCC's use of the term.

Rachel Pike's comment that it's the "biggest problem you could ever imagine" reminds us that climate change is a dense and multifaceted issue. There are facets of climate science and policy where convergent agreement dominates, while in other areas, contentious disagreement has generated worthwhile debate and discussion. The media's conflation of these diverse dimensions into one sweeping issue has contributed to confusion and created a breeding ground for manipulation from outlier viewpoints to inadvertently or deliberately skew public opinion.

It's important that we critically assess who ‘speaks for climate change' and understand their agendas. To the extent that their claims are flatly reported, or that in the name of fairness and balance speakers are frequently placed on equal footing irrespective of their expertise, individuals and organizations have become empowered to speak with authority through mass media. This skews how citizens and policy makers understand climate change issues, the stakes involved and the spectrum of possible actions to take. Cognizant of this, in 2013 the L.A. Times announced it would no longer print letters from climate change detractors. L.A. Times letters editor Paul Thornton wrote, "Simply put, I do my best to keep errors of fact off the letters page; when one does run, a correction is published. Saying "there's no sign humans have caused climate change" is not stating an opinion, it's asserting a factual inaccuracy."

About this TED Studies collection

While poorly communicated information can hamper the ability to make important decisions related to climate change causes and consequences, accurate and engaging information accessed through these TED Talks gives you power: power to understand, power to share your understanding with others, and power to take action.

Here we'll consider the environment as our planet's renewable and non-renewable natural resources, and a support system for the quantity, quality and sustainability of human activities. We'll see science as a systematic enterprise that builds and organizes knowledge, sorting through the unceasing flow of human experience. We'll explore policy as guides for decision making about human management of environment, articulating the principles, intentions, and mandates about who gets what, when and how. And we'll contemplate values as systems of conduct and broad preferences (individual to societal) concerning the morality of outcomes.

We begin with three modules that center our considerations on the climate science. First, through science journalist Lee Hotz's TED Talk, we explore the evidence that the climate is changing. Next, photographer James Balog contributes additional compelling, visible, measurable documentation of certain climate change effects. Balog's talk also highlights critical elements of the certainty/uncertainty debate that has dogged the issue. Third, through the TED Talk by climate scientist James Hansen, we explore the convergent agreement in the scientific community that humans contribute to contemporary climate change.

We continue with three modules exploring the politics of taking action through mitigation, adaptation and cross-cutting market-based, risk-reduction regulatory measures. We start with a TED Talk from former United States Vice President Al Gore, who calls for various ways to reduce our emissions of greenhouse gases into the atmosphere (mitigation). Next, we turn to the TED Talk by environmental lawyer Vicki Arroyo, who suggests ways in which human communities can reduce their vulnerability to climate change and increase resilience (adaptation). Then we consider cross-cutting, often market-based risk reduction efforts by way of a TED Talk from journalist Naomi Klein. Her talk opens a space where we can critically evaluate climate risk reduction endeavors such as the market-based cap and trade proposals that are considered an essential tool by some, and merely a shell game by others.

We finish with two modules that focus our attention on important values and ethics questions. First, former UK Prime Minister Gordon Brown challenges us to build a stronger global society by cutting carbon emissions in a way that is beneficial and equitable to all nations. Finally we turn to sustainabily strategist Johan Rockström's TED Talk about how nine ‘planetary boundaries' (which include climate change) can usefully guide ecosystem and environmental protection for future generations.

Let's begin with a look at the scientific evidence that's being unearthed at" the South Pole; science journalist Lee Hotz takes us there via his TED Talk "Inside an Antarctic time machine."

Inside an Antarctic time machine

Relevant talks.

New thinking on the climate crisis

Gordon Brown

Global ethic vs. national interest.

James Balog

Time-lapse proof of extreme ice loss.

Why I must speak out about climate change

James Hansen

Why i must speak out about climate change.

Johan Rockström

Let the environment guide our development.

Naomi Klein

Addicted to risk.

Vicki Arroyo

Let's prepare for our new climate.

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Climate Explained: Introductory Essays About Climate Change Topics

Filed under: backgrounders for educators ,.

Climate Explained, a part of Yale Climate Connections, is an essay collection that addresses an array of climate change questions and topics, including why it’s cold outside if global warming is real, how we know that humans are responsible for global warming, and the relationship between climate change and national security.

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Climate Change Basics: Five Facts, Ten Words

Backgrounders for Educators

To simplify the scientific complexity of climate change, we focus on communicating five key facts about climate change that everyone should know.

Why should we care about climate change?

Having different perspectives about global warming is natural, but the most important thing that anyone should know about climate change is why it matters.

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Climate change widespread, rapid, and intensifying – ipcc.

GENEVA, Aug 9 – Scientists are observing changes in the Earth’s climate in every region and across the whole climate system, according to the latest Intergovernmental Panel on Climate Change (IPCC) Report, released today. Many of the changes observed in the climate are unprecedented in thousands, if not hundreds of thousands of years, and some of the changes already set in motion—such as continued sea level rise—are irreversible over hundreds to thousands of years.

However, strong and sustained reductions in emissions of carbon dioxide (CO 2 ) and other greenhouse gases would limit climate change. While benefits for air quality would come quickly, it could take 20-30 years to see global temperatures stabilize, according to the IPCC Working Group I report, Climate Change 2021: the Physical Science Basis , approved on Friday by 195 member governments of the IPCC, through a virtual approval session that was held over two weeks starting on July 26.

The Working Group I report is the first instalment of the IPCC’s Sixth Assessment Report (AR6), which will be completed in 2022.

“This report reflects extraordinary efforts under exceptional circumstances,” said Hoesung Lee, Chair of the IPCC. “The innovations in this report, and advances in climate science that it reflects, provide an invaluable input into climate negotiations and decision-making.”

Faster warming

The report provides new estimates of the chances of crossing the global warming level of 1.5°C in the next decades, and finds that unless there are immediate, rapid and large-scale reductions in greenhouse gas emissions, limiting warming to close to 1.5°C or even 2°C will be beyond reach.

The report shows that emissions of greenhouse gases from human activities are responsible for approximately 1.1°C of warming since 1850-1900, and finds that averaged over the next 20 years, global temperature is expected to reach or exceed 1.5°C of warming. This assessment is based on improved observational datasets to assess historical warming, as well progress in scientific understanding of the response of the climate system to human-caused greenhouse gas emissions.

“This report is a reality check,” said IPCC Working Group I Co-Chair Valérie Masson-Delmotte. “We now have a much clearer picture of the past, present and future climate, which is essential for understanding where we are headed, what can be done, and how we can prepare.”

Every region facing increasing changes

Many characteristics of climate change directly depend on the level of global warming, but what people experience is often very different to the global average. For example, warming over land is larger than the global average, and it is more than twice as high in the Arctic.

“Climate change is already affecting every region on Earth, in multiple ways. The changes we experience will increase with additional warming,” said IPCC Working Group I Co-Chair Panmao Zhai.

The report projects that in the coming decades climate changes will increase in all regions. For 1.5°C of global warming, there will be increasing heat waves, longer warm seasons and shorter cold seasons. At 2°C of global warming, heat extremes would more often reach critical tolerance thresholds for agriculture and health, the report shows.

But it is not just about temperature. Climate change is bringing multiple different changes in different regions – which will all increase with further warming. These include changes to wetness and dryness, to winds, snow and ice, coastal areas and oceans. For example:

Climate change is intensifying the water cycle. This brings more intense rainfall and associated flooding, as well as more intense drought in many regions.
Climate change is affecting rainfall patterns. In high latitudes, precipitation is likely to increase, while it is projected to decrease over large parts of the subtropics. Changes to monsoon precipitation are expected, which will vary by region.
Coastal areas will see continued sea level rise throughout the 21st century, contributing to more frequent and severe coastal flooding in low-lying areas and coastal erosion. Extreme sea level events that previously occurred once in 100 years could happen every year by the end of this century.
Further warming will amplify permafrost thawing, and the loss of seasonal snow cover, melting of glaciers and ice sheets, and loss of summer Arctic sea ice.
Changes to the ocean, including warming, more frequent marine heatwaves, ocean acidification, and reduced oxygen levels have been clearly linked to human influence. These changes affect both ocean ecosystems and the people that rely on them, and they will continue throughout at least the rest of this century.
For cities, some aspects of climate change may be amplified, including heat (since urban areas are usually warmer than their surroundings), flooding from heavy precipitation events and sea level rise in coastal cities.

For the first time, the Sixth Assessment Report provides a more detailed regional assessment of climate change, including a focus on useful information that can inform risk assessment, adaptation, and other decision-making, and a new framework that helps translate physical changes in the climate – heat, cold, rain, drought, snow, wind, coastal flooding and more – into what they mean for society and ecosystems.

This regional information can be explored in detail in the newly developed Interactive Atlas interactive-atlas.ipcc.ch as well as regional fact sheets, the technical summary, and underlying report.

Human influence on the past and future climate

“It has been clear for decades that the Earth’s climate is changing, and the role of human influence on the climate system is undisputed,” said Masson-Delmotte. Yet the new report also reflects major advances in the science of attribution – understanding the role of climate change in intensifying specific weather and climate events such as extreme heat waves and heavy rainfall events.

The report also shows that human actions still have the potential to determine the future course of climate. The evidence is clear that carbon dioxide (CO 2 ) is the main driver of climate change, even as other greenhouse gases and air pollutants also affect the climate.

“Stabilizing the climate will require strong, rapid, and sustained reductions in greenhouse gas emissions, and reaching net zero CO 2 emissions. Limiting other greenhouse gases and air pollutants, especially methane, could have benefits both for health and the climate,” said Zhai.

For more information contact:

IPCC Press Office [email protected] , +41 22 730 8120

Katherine Leitzell [email protected]

Nada Caud (French) [email protected]

Notes for Editors

Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change

The Working Group I report addresses the most updated physical understanding of the climate system and climate change, bringing together the latest advances in climate science, and combining multiple lines of evidence from paleoclimate, observations, process understanding, global and regional climate simulations. It shows how and why climate has changed to date, and the improved understanding of human influence on a wider range of climate characteristics, including extreme events. There will be a greater focus on regional information that can be used for climate risk assessments.

The Summary for Policymakers of the Working Group I contribution to the Sixth Assessment Report (AR6) as well as additional materials and information are available at https://www.ipcc.ch/report/ar6/wg1/

Note : Originally scheduled for release in April 2021, the report was delayed for several months by the COVID-19 pandemic, as work in the scientific community including the IPCC shifted online. This is first time that the IPCC has conducted a virtual approval session for one of its reports.

AR6 Working Group I in numbers

234 authors from 66 countries

31 – coordinating authors
167 – lead authors
36 – review editors
517 – contributing authors

Over 14,000 cited references

A total of 78,007 expert and government review comments

(First Order Draft 23,462; Second Order Draft 51,387; Final Government Distribution: 3,158)

More information about the Sixth Assessment Report can be found here .

About the IPCC

The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.

Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, IPCC scientists volunteer their time to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.

The IPCC has three working groups: Working Group I , dealing with the physical science basis of climate change; Working Group II , dealing with impacts, adaptation and vulnerability; and Working Group III , dealing with the mitigation of climate change. It also has a Task Force on National Greenhouse Gas Inventories that develops methodologies for measuring emissions and removals. As part of the IPCC, a Task Group on Data Support for Climate Change Assessments (TG-Data) provides guidance to the Data Distribution Centre (DDC) on curation, traceability, stability, availability and transparency of data and scenarios related to the reports of the IPCC.

IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency. An IPCC assessment report consists of the contributions of the three working groups and a Synthesis Report. The Synthesis Report integrates the findings of the three working group reports and of any special reports prepared in that assessment cycle.

About the Sixth Assessment Cycle

At its 41st Session in February 2015, the IPCC decided to produce a Sixth Assessment Report (AR6). At its 42nd Session in October 2015 it elected a new Bureau that would oversee the work on this report and the Special Reports to be produced in the assessment cycle.

Global Warming of 1.5°C , an IPCC special report on the impacts of global warming of 1.5 degrees Celsius above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty was launched in October 2018.

Climate Change and Land , an IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems was launched in August 2019, and the Special Report on the Ocean and Cryosphere in a Changing Climate was released in September 2019.

In May 2019 the IPCC released the 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories , an update to the methodology used by governments to estimate their greenhouse gas emissions and removals.

The other two Working Group contributions to the AR6 will be finalized in 2022 and the AR6 Synthesis Report will be completed in the second half of 2022.

For more information go to www.ipcc.ch

The website includes outreach materials including videos about the IPCC and video recordings from outreach events conducted as webinars or live-streamed events.

Most videos published by the IPCC can be found on our YouTube and Vimeo channels.

News from the Columbia Climate School

Climate and the Personal Essay — A Reading List

Hayley Martinez

The Earth Institute recently announced Mary Annaïse Heglar as its first writer-in-residence, a newly launched joint initiative of the Earth Institute and the Natural Resources Defense Council (NRDC). Heglar, a noted climate justice essayist, will spend the next six months at Columbia exploring the intersection of climate science, art and literature.

Starting this Friday , Heglar will be leading a reading group for Columbia students that explores climate change topics through personal essays. Each week, students will read a few chosen pieces around a specific theme, with a particular emphasis on emotional depth and marginalized communities.

The climate crisis may be scientific and political, but it is also deeply emotional and personal, and Heglar seeks to create a safe space for students to explore that emotionality. Students will meet weekly to discuss the chosen essays, and will be encouraged to journal and invited to share their own writing. According to Heglar, “I’m hoping that participants, including myself, will be able to see ourselves in these stories and use that reflection to hone our own voices.”

While this seminar is only open to Columbia students, others can follow along. The nine-week reading list is below.

Week 1: Climate Grief

Under the Weather, by Ash Sanders
Endlings , by Harriet Riley

Week 2: The Problem with Hope

We Need Courage, Not Hope, to Face Climate Change, Kate Marvel
Is it Wrong to be Hopeful about Climate Change? Diego Arguedas Ortiz

Week 3: If Not Hope, What?

The Case for Climate Rage , Amy Westervelt
But the Greatest of These is Love , Mary Annaïse Heglar
Time to Panic , David Wallace Wells

Week 4: We’re Not Recreating the Wheel

Letter from a Birmingham Jail, Martin Luther King
The Fire Next Time, James Baldwin
Climate Change Ain’t the First Existential Threat , Mary Annaïse Heglar

Week 5: Who’s Missing?

What Listening Means in the Time of the Climate Crisis , Tara Houska
Perhaps the World Ends Here , Julian Brave NoiseCat
Climate Darwinism Makes Disabled People Expendable , Imani Barbarin

Week 6: There Are No Heroes

When the Hero is the Problem , Rebecca Solnit

Week 7: Out with the Guilt

Who is the We in We Are Causing Climate Change , Genevieve Geunther
In Defense of Eco-hypocrisy , Sami Grover
On Being a Climate Person , Eric Holthaus

Week 8: The Great Impotence

The End Times Are Here and I’m at Target , Hayes Brown
What if We Stopped Pretending the Climate Apocalypse Can Be Stropped , Jonathan Franzen

Week 9: What Now?

Home is Always Worth It , Mary Annaïse Heglar
In 2030, We Solved the Climate Emergency. Here’s How , Eric Holthaus
Loving a Vanishing World , Emily Johnston

Students interested in attending the reading group can reach out to Cynthia Thomson at [email protected] .

Learning About Complex Climate Risks

Ancient Plant, Insect Bits Confirm Greenland Melted in Recent Geologic Past

Planting Some Tree Species May Worsen, Not Improve, NYC Air, Says New Study

Get the Columbia Climate School Newsletter

The Climate Crisis and Colonialism Destroyed My Maui Home. Where We Must Go From Here

A s I watched the flames of the wildfires consume my beloved Maui, it felt as if the very pages from the Book of Revelations were coming alive.

Homes, sacred structures, and institutions flattened. Over 100 lives were lost, with a thousand more unaccounted for. Even the ancient 150-year-old Banyan tree, a guardian of my youth, was marred by the inferno. Each ember seemed to tell a tale, a memory, a piece of a narrative that connected countless generations.

The harrowing wildfires paired with a fierce hurricane wasn't just a tragedy. It felt like Goddess Papahānaumoku—Earth Mother, herself—raging at humanity's hubris. The disturbing silence left by the missing and the mourned souls tells of a disaster that's unnatural, shaped by the human hand—a byproduct of the dangerous dance between climate change and centuries of colonial greed.

While West Maui is no stranger to wildfires, the magnitude of the blaze that tore through Lāhainā is emblematic of a changing climate. Our once-wetland haven has been transformed into a vulnerable tinderbox. Compounding the problem was Hurricane Dora— made fiercer by the warming climate—which propelled the fire further. All of this underscores a painful truth: the first and most severely impacted by the climate crisis are often indigenous, Black, brown, and low-income communities. These groups have contributed the least to climate change, but have suffered the most, and must be prioritized in our transition to a better world.

We can't ignore the scars of history which set the stage for this disaster. Before the hotels, before Hawaii was known as a state or even a territory (and way before its illegal annexation), Lāhainā was the cradle of our civilization. It was the heart and capital of the Hawaiian Kingdom. The waters were so abundant that boats once surrounded the iconic Waiola Church. Kamehameha The Great’s palace stood tall at the town’s center, keeping watch over the shoreline.

Read More: The History Lost in the Maui Wildfires But at the turn of the 20th century, American sugar barons came to exploit Hawaii's rich resources . They disrupted Lahaina's water supply and brought highly flammable grasses to Hawaii—the very ones that ignited with ferocity last week. Their heirs went on to monopolize land, marginalizing our indigenous population in the process.

Their legacy and extractive way of life endures. Maui’s most dominant corporations today, like Alexander & Baldwin, embody the legacy of those same barons who once sought to profit from our fertile lands. Their ethos of extraction and destruction persists in Maui’s most dominant industries: land speculation and tourism. These industries seek to destroy much of Hawaii’s natural beauty while gatekeeping sections of it for the privileged few. This timeline of Hawaiian history could be experienced first hand by a walk down Lāhinā’s Front Street just two weeks ago. You could see milestones of our history represented in the street’s restaurants, stores, and historic buildings: from royalty, to whaling, sugar, tourism, and luxury. Today, much of Front Street is burned to the ground. It’s a potent and harrowing reminder of the terminal point of the exploitative trajectory Hawaii has been on for decades. My greatest fear is that this trajectory of exploitation will continue in the recovery from the Maui wildfires. As whispers of reshaping Lāhainā emerge, with wealthy developers eager to mold it to their vision, our generation’s vision for social and environmental justice grows even firmer. Our recovery from the wildfires can’t just be about combating climate change—it has to be about returning control of our cherished lands to the people who hold them dear.

Read More: Why the History of Hawaii Makes People Fear Lahaina's Future

The future of Maui should be more than just a haven for tourists. Our land should cater to local needs over external desires. Instead of vast monocrops, we should diversify, nurturing fields that feed our own people. Our approach to housing must be rooted in necessity: We need to build homes to actually shelter our people, not to line the pockets of distant investors. With the Department of Hawaiian Homes fully funded for the first time and various land trusts eager to lend a hand, the moment is ripe to provide our many unsheltered Kānaka Maoli with homes that dignify their heritage.

The people of Maui, especially survivors, are taking charge of the recovery process, reshaping the blueprint for our island's restoration. We're picturing a community-driven, just recovery that not only reconstructs Maui but also fosters new leadership among Maui residents—from collaboratively rebuilding a school one day to advocating at the county council the next. As we rise from the ashes, our rebuilding efforts must champion hoʻomana Lāhui—the spirit of collective empowerment.

At the national level, it's past time for President Biden to officially recognize the climate crisis by declaring a climate emergency. This would enable him to halt the destructive fossil fuel production driving these disasters. Furthermore, substantial federal investments on the scale of trillions are required to prevent catastrophes like this one in the future and prioritize the welfare of working families in mitigation and recovery efforts. Any climate solution would be incomplete without justice at its core. Kānaka Maoli, Native Hawaiians, should be central to the rebuilding and recovery efforts. We should have the authority to manage our lands and resources.

In these heartrending times, it's challenging to see beyond the immediate pain. But there’s a silver lining in our resilience. The wildfires of Maui, while devastating, have also ignited a spark in us. They’ve awakened a renewed commitment to not just rebuild, but to redefine what Hawaii stands for. This is our home, our history, our legacy. And it's our collective responsibility to ensure that Hawaii’s future is carved out of respect, understanding, and love for its past.

Just like the Banyan tree, Lāhainā may have faced devastation, but its roots are deep and resilient. As the Banyan regrows its branches—and recolors itselves with budding leaves—so too, will Lāhainā flourish again.

More Must-Reads from TIME

Heman Bekele Is TIME’s 2024 Kid of the Year
The Reintroduction of Kamala Harris
The 7 States That Will Decide the Election
Why China Won’t Allow Single Women to Freeze Their Eggs
Is the U.S. Ready for Psychedelics?
The Rise of a New Kind of Parenting Guru
The 50 Best Romance Novels to Read Right Now
Can Food Really Change Your Hormones?

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Published: 13 August 2024

Reducing climate change impacts from the global food system through diet shifts

Yanxian Li ORCID: orcid.org/0000-0002-1947-7541 1 ,
Pan He ORCID: orcid.org/0000-0003-1088-6290 2 , 3 ,
Yuli Shan ORCID: orcid.org/0000-0002-5215-8657 4 ,
Ye Hang ORCID: orcid.org/0000-0002-1368-905X 4 ,
Shuai Shao ORCID: orcid.org/0000-0002-9525-6310 6 ,
Franco Ruzzenenti 1 &
Klaus Hubacek ORCID: orcid.org/0000-0003-2561-6090 1

Nature Climate Change ( 2024 ) Cite this article

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Climate-change impacts
Climate-change mitigation

How much and what we eat and where it is produced can create huge differences in GHG emissions. On the basis of detailed household-expenditure data, we evaluate the unequal distribution of dietary emissions from 140 food products in 139 countries or areas and further model changes in emissions of global diet shifts. Within countries, consumer groups with higher expenditures generally cause more dietary emissions due to higher red meat and dairy intake. Such inequality is more pronounced in low-income countries. The present global annual dietary emissions would fall by 17% with the worldwide adoption of the EAT-Lancet planetary health diet, primarily attributed to shifts from red meat to legumes and nuts as principal protein sources. More than half (56.9%) of the global population, which is presently overconsuming, would save 32.4% of global emissions through diet shifts, offsetting the 15.4% increase in global emissions from presently underconsuming populations moving towards healthier diets.

Simple dietary substitutions can reduce carbon footprints and improve dietary quality across diverse segments of the US population

The ongoing nutrition transition thwarts long-term targets for food security, public health and environmental protection

Adoption of the ‘planetary health diet’ has different impacts on countries’ greenhouse gas emissions

Food choices impact both our health and the environment 1 , 2 . The food system is responsible for about one-third of global anthropogenic GHG emissions 3 , 4 and climate goals become unattainable without efforts to reduce food-related emissions 5 , 6 . However, not everyone contributes the same way to food-related emissions because of disparities in lifestyle, food preferences and affordability within and across countries 7 , 8 , 9 . High levels of food consumption (especially animal-based diets), one of the leading causes of obesity and non-communicable diseases 10 , 11 , lead to substantial emissions 9 , 12 . Simultaneously, >800 million people still suffer from hunger and almost 3.1 billion people cannot afford a healthy diet 13 . Ending hunger and malnutrition while feeding the growing population by extending food production will further exacerbate climate change 14 , 15 . Given the notable increase in emissions driven by food consumption despite efficiency gains 16 , changing consumer lifestyles and choices are needed to mitigate climate change 17 .

Research shows that widespread shifts towards healthier diets, aligned with the sustainable development goals (SDGs) of the United Nations 18 , offer solutions to this complex problem by eradicating hunger (SDG 2), ensuring health (SDG 3) and mitigating emissions (SDG 13) 19 , 20 , 21 , 22 . Numerous dietary options have been proposed as guidelines for diet shifts 1 , 23 , 24 . The planetary health diet 12 , proposed by the EAT-Lancet Commission, stands out as a prominent option. It aims to improve health while limiting the impacts of the food system within planetary boundaries by providing reference intake levels for different food categories 9 , 25 . It is flexibly compatible with diversities and preferences of regional and local diets 12 . Previous research has estimated changes in country-specific environmental impacts, including GHG emissions 26 , 27 , 28 and water consumption 25 , resulting from adopting the planetary health diet. However, there is limited evidence on how different population groups will contribute differently in this process 7 .

Food consumption and associated emissions differ as a result of disparities in consumer choices guided by social and cultural preferences, wealth and income 29 . Quantifying food-related emissions along the entire supply chain for different products and population groups provides information for emission mitigation through changing consumer choices 17 . With the improved availability of household consumption data, recent studies have revealed inequality in energy consumption 30 , 31 and carbon emissions 17 , 32 , 33 , 34 . Although there are several studies on income- or expenditure-specific food-related emissions within individual countries based on survey-based data 35 , 36 , 37 , 38 , previous studies have not assessed global food-related emissions with a detailed breakdown into specific products and population groups. Furthermore, reducing the overconsumption of wealthy or otherwise overconsuming groups can increase the availability of resources for reducing hunger and malnutrition 7 . However, it remains unclear how emissions from different population groups would change in response to global diet shifts.

To fill these gaps, this study evaluates GHG emissions (CO 2 , CH 4 and N 2 O) throughout the global food supply chains (including agricultural land use and land-use change, agricultural production and beyond-farm processes) 16 induced by diets, termed ‘dietary emissions’, in 2019 and the potential emission changes of global diet shifts. Food loss and waste during household consumption 25 , 39 , 40 have been subtracted from the national food supply to obtain dietary intake. We quantify dietary emissions of 140 products 16 (classified into 13 food categories 12 ) on the basis of the global consumption-based emissions inventory of detailed food products 16 . By linking detailed food intake amounts to the food consumption patterns of 201 global expenditure groups (grouped according to the per capita total expenditure of each group) from the household-expenditure dataset 41 based on the World Bank Global Consumption Database (WBGCD) 42 , we analyse the unequal distribution of dietary emissions in 139 countries or areas, covering 95% of the global population. Despite limitations, the total expenditure of consumers, which effectively reflects patterns in household income, consumption and asset accumulation, is a useful approximation to represent levels of income and wealth 31 , 43 . Additionally, we build a scenario of shifting from diets in 2019 to the global planetary health diet to estimate emission changes ( Methods ). This study investigates differences in dietary emissions among regions, countries and population groups, identifying areas where efforts are needed to mitigate emissions during the global transition towards a healthier and more planet-friendly diet.

Present dietary emissions across countries

In this study, dietary emissions account for emissions along the entire global food production supply chains, which are allocated to final consumers of diets. We use the term ‘GHG footprints’ to specifically refer to the dietary emissions of an individual over 1 year 17 , 34 . The total dietary emissions and country-average per capita GHG footprints show different distributions across countries in 2019 (Fig. 1a ; for detailed food categories see Supplementary Figs. 1 – 9 ). The present total global dietary emissions reach 11.4 GtCO 2 e (95% confidence interval 8.2–14.7 Gt) (details of uncertainty ranges in Supplementary Tables 1 and 2 ). China (contributing 13.5% of emissions) and India (8.9%), the world’s most populous countries (Supplementary Table 3 ), are the largest contributors to global dietary emissions. Alongside Indonesia, Brazil, the United States, the Democratic Republic of Congo, Pakistan, Russia, Japan and Mexico, the top ten contributors represent 57.3% of global dietary emissions but with very unequal per capita emissions within and between countries. We find the highest country-average per capita footprints in Bolivia, with 6.1 tCO 2 e, followed by Luxembourg, Slovakia, Mongolia, the Netherlands and Namibia, with >5.0 tCO 2 e (Supplementary Discussion 2.1 ). Haiti (0.36 tCO 2 e) and Yemen (0.38 tCO 2 e) have the lowest country-average footprints, followed by Burundi, Ghana and Togo. Insufficient food intake of residents due to limited food affordability 44 , 45 is the root cause of low footprints in these low- and lower-middle-income countries 46 .

a , Total and per capita dietary emissions for 139 countries/areas. b , Regional dietary emissions from different food categories and populations. The bar chart (left primary axis) shows the regional emission amounts and the line chart (right secondary axis) shows the number of regional populations. Columns are ordered by the descending per capita GDP of regions (Supplementary Tables 5 and 6 ). USA, United States; AUS, Australia; WE, Western Europe; CAN, Canada; JPN, Japan; RUS, Russia; ROEA, Rest of East Asia; EE, East Europe; CHN, China; ROO, Rest of Oceania; NENA, Near East and North Africa; BRA, Brazil; ROLAC, Rest of Latin America and the Caribbean; ROSEA, Rest of Southeast Asia; IDN, Indonesia; IND, India; ROSA, Rest of South Asia; and SSA, Sub-Saharan Africa. Details for the division and scope of regions are shown in Supplementary Fig. 10 and Supplementary Tables 7 and 8 . Country classification by income levels is based on the World Bank 46 . Credit: World Countries basemap, Esri ( https://hub.arcgis.com/datasets/esri::world-countries/about ).

Source data

While animal-based (52%) and plant-based (48%) products contribute nearly equally to global dietary emissions 4 , 16 , the latter accounts for 87% of calories in global diets (Supplementary Table 4 ). The three main sources of emissions, namely red meat (beef, lamb and pork) (5% of calories), grains (51%) and dairy products (5%), contribute to 29%, 21% and 19% of global emissions, respectively. The substantial emissions from red meat and dairy products are attributed to their considerably higher emissions per unit of calories compared to other categories (Supplementary Table 4 ).

To highlight emission differences at a regional level, we further group the country-level results into 18 regions according to geographical locations and development levels (Fig. 1b and Supplementary Fig. 10 ). In most regions, animal-based products contribute fewer calories (less than a quarter) (Supplementary Data 21 ) but yield more emissions than plant-based products, especially in Australia (84% from animal-based products), the United States (71%) and the region Rest of East Asia (71%) where residents excessively consume both red meat and dairy products. However, the consumption of plant-based products in Indonesia (83% of total calories), Rest of Southeast Asia (92%) and Sub-Saharan Africa (77%) accounts for the most emissions, at 92%, 73% and 64%, respectively. Southeast Asia including Indonesia has a high-emission proportion from grains (42%) due to the prevalent meals dominated by rice. The typical food basket in Sub-Saharan Africa is broadly made up of grains, tubers, legumes and nuts 25 , 47 , representing over half of the regional emissions.

Unequal distribution of dietary emissions within countries

We find substantial differences in per capita GHG footprints within countries and regions. To clearly present the distribution of footprints within each country and region, individuals are sorted in ascending order of their total expenditure levels and then sequentially allocated to ten expenditure deciles with equal population size (Supplementary Fig. 11 and Fig. 2a ). As expenditures increase, individuals tend to have higher levels of footprints, with the largest increase attributed to red meat and dairy products. Richer populations usually have higher per capita footprints related to animal-based products than the poorer in most regions (Fig. 2b ). However, there are differences in per capita footprints within expenditure deciles. For example, even in high-income countries such as Australia and Japan, the dietary intake of red meat for some people in the poorest deciles falls below the recommended levels (Supplementary Data 15 ). Rest of East Asia is one exception, with the poorest decile having high footprints due to a substantial intake of red meat, as seen in Mongolia where beef and mutton are the most common dish 48 .

a , GHG footprints from all types of food categories. The size of the bubble refers to the average total expenditure represented by the decile. b , GHG footprints from different food categories. The colours of bubbles in a and b indicate expenditure deciles ranging from the poorest in blue to the wealthiest in red and are comparable only within each region.

Footprints related to plant-based products in specific regions show a different trend from animal-based products as expenditures increase. The middle expenditure groups are responsible for the highest footprints associated with grains in Sub-Saharan Africa and Southeast Asia and the highest footprints of tubers, vegetables and fruits (mainly starchy tropical fruits 49 ) in the Rest of Oceania. These locally produced, high-carbohydrate products are traditional staple foods. In poor countries, agricultural policy primarily targets improving the productivity of staple food, with little investment in the market and facilities for nutrient-rich products 50 , 51 . Consequently, the need for dietary diversity for middle- and low-income people is not adequately addressed 50 , leading to increased consumption of these lower-cost products. However, wealthier consumers can afford more expensive products, such as red meat, reducing their reliance on these staple products.

We use the GHG footprint Gini (GF-Gini) coefficient, calculated on the basis of data from 201 expenditure groups, to measure the dietary emission inequality within a country (Fig. 3 ), with 0 indicating perfect equality and 1 indicating perfect inequality. The inequality of dietary emissions tends to decline with the increase of the per capita GDP of a country, especially for animal-based products. We find the highest inequality of dietary emissions of food products generally in low-income countries, most of which are located in Sub-Saharan Africa. In Sub-Saharan Africa, the highest spending 10% of the population contributes 40% of the regional emissions from red meat, 39% from poultry and 35% from dairy products. In contrast, high-income countries generally have relatively low inequality with high levels of emissions despite country-to-country variations. The GF-Gini coefficients for all types of products of most Western European countries are <0.20 (Supplementary Tables 9 and 10 ), which is lower than for other high-income countries such as the United States, Australia, Canada and Japan.

a – j , The x axis represents the country-average per capita GDP, and the y axis represents the national GF-Gini coefficients of all types of ( a ) and different ( b – j ) food categories. b , Beef, lamb and pork. c , Dairy products. d , Poultry, eggs and fish. e , Grains. f , Tubers and starchy vegetables. g , Vegetables and fruits. h , Legumes and nuts. i , Added fats. j , All sugars. Logarithmic regression (red solid line) and locally weighted regression analysis (blue dotted line) are used to determine the relationship between the national GF-Gini coefficient (dependent variable) and the country-average per capita GDP (independent variable). The coefficients of determination ( R 2 ) and the exact P values from the two-sided Student’s t -test for the logarithmic regression are indicated in each subgraph. The error bands (grey shaded areas) represent 95% confidence intervals around the fitted logarithmic regression lines. Blue, orange and green dots represent all types of products, animal-based products and plant-based products, respectively.

Dietary emission shares across consumer groups

There are notable differences in dietary emission shares associated with food categories across expenditure deciles between regions (Fig. 4 ). In high-income countries, expenditure groups have relatively similar patterns of dietary emissions, with large shares of red meat and dairy products contributing the largest amount of emissions. Even poor consumer groups in high-income countries tend to be more likely to be able to afford animal-based products as a result of relatively lower prices for dairy products, eggs, white meat and processed red meat. This contrasts with the high prices of animal-based products due to supply constraints in most low- and lower-middle-income countries 52 , 53 . Except in high-income countries, starchy staple foods (including grains and tubers), with low prices but high-carbohydrate content 44 , 54 , constitute a large proportion of dietary emissions because of the high level of consumption, especially in Southeast Asia and Sub-Saharan Africa. As individuals’ expenditures increase in these countries, emission shares from starchy staple foods in total emissions decrease substantially. These changes demonstrate that as the affordability of food increases, populations tend to adopt instead more diverse diets composed of fewer starchy staple foods and more meat, dairy products, vegetables and fruits. This trend generally aligns with Bennett’s Law 25 , 55 , 56 . For example, research shows that with rapid economic growth, China’s urban or high-income groups increase their intake of non-starchy foods to fulfil their requirements of dietary diversity 35 , while poorer groups, often engaging in strenuous physical jobs, predominantly consume inexpensive starchy staple foods. One exception is Rest of Oceania, where poorer groups have higher percentages of emissions from not only tubers but also vegetables and fruits. Owing to relatively low expenditure on food, poor populations in this island region usually choose locally cultivated tubers and fruits (such as cassava, taro and bananas) 57 , 58 with high intensities of land-use emissions 59 .

The numbers at the bottom of each bar represent the expenditure levels of regional expenditure deciles, ranging from the poorest (1) to the wealthiest (10). Food categories are shown in the colour legend. a , United States. b , Australia. c , Western Europe. d , Canada. e , Japan. f , Russia. g , Rest of East Asia. h , Eastern Europe. i , China. j , Rest of Oceania. k , NENA. l , Brazil. m , ROLAC. n , Rest of Southeast Asia. o , Indonesia. p , India. q , Rest of South Asia. r , Sub-Saharan Africa.

Emission changes from adopting the planetary health diet

To estimate the emission changes from a global diet shift, we build a hypothetical scenario by assuming that everyone in all countries adopts the planetary health diet ( Methods ). Results indicate that the global dietary emissions would decrease by 17% (1.94 (1.51–2.39) GtCO 2 e) compared with the 2019 level (details of the uncertainty ranges can be found in Supplementary Tables 11 and 12 ). The presently overconsuming groups (56.9% of the global population) would save 32.4% of global emissions through diet shifts, more than offsetting the 15.4% increase in global emissions from the presently underconsuming groups (43.1% of the global population) as a result of adopting healthier diets (Supplementary Table 13 ). National dietary emissions in 100 countries would decline by 2.88 GtCO 2 e, whereas the other 39 countries (mainly low- and lower-middle-income countries 46 in Sub-Saharan Africa and South Asia) would have an increase in emissions by 938 MtCO 2 e (Fig. 5a ; for detailed food categories see Supplementary Figs. 12 – 20 ).

a , Volume changes and percentage changes of national emissions for 139 countries/areas. b , Regional emission changes from different food categories. Abbreviations of 18 regions and the source of the base map are listed in Fig. 1 caption.

Countries would be affected differently regarding emission changes by adopting the planetary health diet, reflected in the percentage change in national emissions (Fig. 5a ). Uzbekistan (−74%), Australia (−70%), Qatar (−67%), Turkey (−65%) and Tajikistan (−64%) would see the largest percentage decrease. In comparison, most of the countries with an estimated considerable percentage increase are located in Sub-Saharan Africa and the Middle East, with the largest percentage increase from Iraq (+155%). Notably, with the increase in per capita GDP, the percentage change in overall dietary emissions of countries shows a shift from a positive to a negative trend, primarily led by changes in animal-based emissions (Supplementary Fig. 21 ).

Global emission reduction would be dominantly driven by red meat and grains (Fig. 5b ). The reduction in meat, eggs and fish would lead to 2.04 GtCO 2 e of emission reduction, of which 94% is driven by the decrease in red meat. China (22%), the United States (15%) and Brazil (14%) would be the largest contributors to emission reduction associated with a decrease in red meat consumption. A decline in grains would result in 914 MtCO 2 e of emission reduction, of which 56% would happen in Asia. A further 240 and 89 MtCO 2 e reduction in emissions would come from reduced sugars and tubers, respectively. However, increased proteins (legumes and nuts and dairy products), added fats and vegetables and fruits would partly offset the above-reduced emissions by 41%. Intake of legumes and nuts would increase in all regions, leading to a further 757 MtCO 2 e of emissions, whereas most of the emission increase related to added fats (largely vegetable oils) (279 Mt) and dairy products (143 Mt) would take place in Sub-Saharan Africa, China and other Asian countries. Global dietary emissions associated with vegetables and fruits would increase by 163 Mt, despite declines in China and Rest of Oceania.

The decline in per capita GHG footprints would be achieved primarily in wealthy consumer groups in high- and upper-middle-income countries, while increased footprints would occur mainly in poor groups in most countries (Fig. 6a ). Results show that the shifts of chief protein sources from animal-based to plant-based proteins according to the planetary health diet 12 would contribute the most to changes in footprints globally (Fig. 6b ). For example, in Australia, Brazil, Canada and the United States where diets are dominated by red meat and dairy products, the top and upper-middle expenditure groups would have notable reductions in footprints. However, most populations in South and Southeast Asia and Sub-Saharan Africa would have a considerable increase in footprints because of the present low levels of red meat intake. Meanwhile, the present intake of plant-based proteins in all countries is below the recommended level 25 . Footprints related to legumes and nuts would increase for most expenditure groups in all regions to meet nutrient demands. This increase is particularly substantial in Rest of Oceania, Brazil, Indonesia and Sub-Saharan Africa, where most of the consumed legumes and nuts are domestically produced with high land-use emission intensities 59 , 60 , assuming the present production and trade patterns remain unchanged.

a , Changes in GHG footprints from all types of food categories. The size of the bubble refers to the average total expenditure represented by the decile. b , Changes in GHG footprints from different food categories. The colours of bubbles in a and b indicate expenditure deciles ranging from the poorest in blue to the wealthiest in red and are comparable only within each region.

Discussion and conclusions

This study uncovers the extent of inequality of dietary emissions within countries based on detailed expenditure data 17 , 34 and underlines the dependence of dietary emissions on expenditure and income levels. Emissions aggregated at expenditure deciles may lose some fine-grained information from the 201 expenditure groups. For example, people from the lowest expenditure groups in affluent countries may experience malnutrition or even hunger, which is not adequately captured at a decile level. Nevertheless, the GF-Gini coefficient calculated from 201 groups provides an accurate reflection of emission inequality. Results show that affluent countries consume high-emission diets but show relatively lower levels of inequality, whereas many poor countries tend to have diets with lower emissions but higher levels of inequality.

The objective of the diet shift scenario is to assess the potential implications of emission mitigation of the food system resulting from changing consumer choices. Widespread diet shifts offer dual benefits by moving 43.1% of the global population out of underconsumption and mitigating 17% of global dietary emissions. The simulated changes in the volume of global emissions under the planetary health diet approximate the findings by ref. 26 (Supplementary Discussion 1 ). However, worldwide diet shifts require tailored policies targeted at regions, countries, expenditure groups and products instead of ‘one-size-fits-all’ policies.

We find that, compared to plant-based products, animal-based products, particularly red meat and dairy products, exhibit greater potential for reducing both emission volumes and emission disparities among different expenditure groups. Priorities lie in reducing the overconsumption of specific emission-intensive products in affluent countries (particularly the high-expenditure groups), such as beef in Australia and the United States, to achieve health 9 , 12 and climate benefits 25 , 26 , 28 . Incentives, such as implementing subsidies or taxation on environmental externalities through food or carbon pricing 61 , ecolabelling 62 and expanding the availability of less emission-intensive products (for instance, menu design for diverse vegetarian foods 63 ), can encourage consumers to make dietary changes. Moreover, a well-designed (primarily urban) food environment can reshape residents’ dietary patterns 35 and the parallel development of urban planning and infrastructure can alleviate the time and financial burdens of shifts to healthier diets 64 . However, in countries such as Mongolia, where diets heavily rely on red meat and dairy products because of their traditional nomadic lifestyle and limited accessibility of diverse foods, especially in rural areas 48 , diet shifts may not be feasible but there is a need to improve national nutritional education 48 .

Low-income countries face more severe challenges in reaching healthier diets. On the one hand, diet shifts require increased food consumption in these countries. For example, in Sub-Saharan Africa, the planetary health diet requires a 3.4-fold increase in dairy consumption for the entire population and a 69-fold increase for the poorest decile (Supplementary Fig. 22 ). However, Sub-Saharan Africa and South and Southeast Asia, which have experienced stagnating agriculture production efficiency for decades 8 , cannot produce domestically nor afford to import the food required for diet shifts 65 . It is crucial to enhance the production efficiency of feed and food crops through various measures such as crop and soil management techniques 8 , 66 and the introduction of high-yielding crop varieties and hybrids 67 , 68 . Moreover, increasing the proportions of nutrient-rich products in food imports 65 and reducing restrictive trade policies which tend to raise food prices 25 , 69 help to address this challenge. On the other hand, poor populations often opt for lower-cost, calorie-dense but less nutritionally beneficial foods. High cost and low affordability remain the largest barriers for these individuals to select healthier diets 44 , 54 , 70 , 71 . Others 44 found that >1.58 billion low-income populations worldwide cannot afford the cost of the planetary health diet. Therefore, policy efforts (for instance, pricing interventions 72 , technical assistance to reduce food production costs 73 and so on) should focus on making food more affordable and accessible, especially for lower expenditure groups 37 , 74 . However, studies indicate that lower food prices may decrease the income of agricultural households 75 , 76 , widen wealth gaps between individuals employed in food- and non-food sectors, especially in low-income agrarian countries and exacerbate rural poverty 1 , 77 . In this sense, policies aimed at promoting diet shifts should be deliberately and cautiously designed with vulnerable groups in mind to reduce inequality 37 , 61 .

Lastly, altered food demand due to diet shifts can induce notable structural adjustments within the global agri-food system. Although this study does not assess the feasibility of countries supplying sufficient food if the planetary health diet was adopted, results indicate that the composition of global food production would change considerably to adapt to the substantial changes in demand 8 , 25 , 77 . The diet shifts would necessitate the global supply (in calorie content) of red meat decrease by 81%, all sugars by 72%, tubers by 76% and grains by 50%, while that of legumes and nuts increase by 438%, added fats by 62% and vegetables and fruits by 28% (Supplementary Data 16 ). Research 77 , 78 confirms that changed food demand could cause fluctuating prices of agricultural products and land in global markets, triggering spillover effects between different food categories or to other non-food sectors (for example, stimulating biofuel production) and partly offsetting the benefits of diet shifts. Therefore, policy-making should focus on alleviating these effects. Incentives such as increased subsidies or tax breaks can generate new economic opportunities and motivations for industries that need to scale up production to meet the heightened demand for products (for example, plant-based proteins). By contrast, for emission-intensive food industries that need to downsize, measures such as gradual crop substitution 25 , 79 could be adopted to optimize production and reduce the costs of production transformations while safeguarding the interests of producers.

In this study, we first assess the GHG emissions from diets comprising 140 products 16 (Supplementary Table 14 ) in 139 countries or areas (we collectively use the term ‘country’ because most of them are individual countries) (Supplementary Data 1 ) in 2019 based on the global consumption-based emission inventory of detailed food products from ref. 16 . The inventory 16 provides data (in mass units) of GHG emissions (including CO 2 , CH 4 and N 2 O) generated during supply chain processes, including agricultural land use and land-use change (LULUC), agricultural activities and beyond-farm processes (excluding emissions from household and end of life) 4 . All emissions are allocated to final consumers of food products. The year 2019 (the latest year before the COVID-19 pandemic) is selected as a baseline year, which can reflect the level of present dietary intake without the interference of the pandemic 80 , 81 . Subsequently, dietary emissions from different expenditure groups are quantified by matching diets with the household-expenditure dataset 42 to reflect the differences and potential inequality of dietary emissions. Finally, to measure the magnitude of the emission impact of the global diet shift, we model the transition from diets in 2019 to the widespread adoption of the planetary health diet. The research framework of this study is shown in Supplementary Fig. 23 .

The following data sources are mainly used in this study. The consumption-based food emissions inventory 16 is based on data derived from the FAOSTAT 82 , comprising national emission accounts of supply chain processes and data on food trade and production. Data on food loss and waste throughout the global supply chain and at the household level as well as food supply data, all used for linking emissions with diets, are obtained from FAOSTAT 83 and previous research 25 , 39 . The household-expenditure data 41 are built on the basis of the WBGCD 42 and further refined and supplemented by consumer expenditure surveys from high-income countries 17 , 41 to bridge the dietary emissions with different expenditure groups. Detailed data sources used for calculation are provided in Supplementary Table 15 . Data processing, assumptions and uncertainties for all calculations are also given.

Dietary energy intake and emissions

Accounting of food consumption and supply chain emissions.

The estimation of the present dietary emissions and the emission changes for adopting the EAT-Lancet planetary health diet 12 is based on the accounting framework designed by ref. 16 . They assess global GHG emissions induced by the consumption of food products in 181 countries based on the physical trade flow approach 84 , 85 . Consumption-based GHG emissions along global supply chains, including local production and international trade, are calculated as follows 16 , 84 :

where E i,r refers to the consumption-based GHG emission of product i in country r . G i / P i represents the vector of direct emission intensity of product i from entire food supply chain processes, of which G i denotes total emissions generated from entire supply chain process of product i , P i is the production vector of product i . ${(I-{A}^{i})}^{-1}$ is the trade structure of product i , of which A i is the matrix of export shares and I is the identity matrix with the same dimension as matrix A i . DMI i refers to the vector of direct material input of product i and DMC i,r is the vector of domestic material consumption of product i in country r with values set to zero for other countries. The DMI of a country is defined as the total inputs of products and the DMC is defined as the amount of products consumed domestically. DMI equals DMC plus exports of products (or production plus imports). F i refers to the vector of total (or consumption-based) emission intensity of product i from food supply chain processes, that is, total emissions induced by per unit of domestic consumption of product i . All variables in equation ( 1 ) are in units of mass (metric tonnes).

Feed products are excluded from diets because emissions from feed crops have been allocated to livestock products that consume feed during production 16 . Food loss and waste (FLW) along supply chains and households are subtracted to quantify the net intake amount of food products from the household stage.

Dietary calorie conversions

We use the annual per capita food supply (FS) quantity of 140 food products from the supply utilization accounts of FAOSTAT 83 and population from the United Nations 86 to calculate the total supply amount of product i in country r (FS i,r , in the unit of mass):

where ${{\rm{FS}}}_{{\rm{per}}}^{i}$ denotes the per capita supply of product i per year and p r refers to the population in country r .

To be consistently matched with the DMC , the FS values should be limited within the coverage of the DMC and values that exceed this range are removed. At the same time, to aggregate food products into food categories and compare their nutritional contents with the reference level from the planetary health diet, we convert the quantity of food consumption or supply into calorie content using product-specific nutritive factors (calories per unit weight of product) 87 , 88 from FAO (Supplementary Table 14 ).

Subtracting food loss and waste at the household level

The food supply derived from FAOSTAT datasets does not exclude FLW that happens during household consumption 25 . FLW before dietary intake can be divided into two parts: the FLW during supply chain processes (including agricultural production, postharvest handling and storage, processing and packaging and distribution) as well as the FLW during the food preparation and supply for household consumption 39 , 40 . The food supply value provided by FAOSTAT only excludes FLW during supply chain processes. Therefore, we exclude household FLW using the method by ref. 25 to calculate the annual dietary intake for each product as follows:

where DI i,r and ${{\rm{DI}}}_{{\rm{per}}}^{i,r}$ refer to the national and per capita caloric intake amount of product i in country r each year, respectively. ${{\rm{FS}}}_{{\rm{energy}}}^{i,r}$ and ${{\rm{FS}}}_{{\rm{energy}\_per}}^{i,r}$ are the national and per capita supply quantity (in calorie content) of product i annually, respectively. Parameter ${f}_{{\rm{FLW}}}^{\;i,r}$ is the FLW factor in the household consumption stage 39 of food product i in country r . Others 39 provide regional FLW factors, expressed as the weight percentage of food that is lost or wasted at different stages of food production and consumption, for different food categories. As a result, household food waste is subtracted from the FS to obtain the dietary intake amount of each product. Detailed household FLW factors are shown in Supplementary Table 16 .

Quantifying dietary GHG emissions

Our equation ( 1 ) can be transformed into the following equation to calculate the total emission intensity of food calorie consumption:

where ${F}_{{\rm{energy}}}^{\,i,r}$ represents total emissions per unit of calorie content of product i in country r , ${{\rm{DMC}}}_{{\rm{energy}}}^{i,r}$ refers to total calorie content of product i consumed domestically in country r . Then, emissions from the dietary intake (without FLW) of product i in country r ( ${E}_{{\rm{intake}}}^{\,i,r}$ ) are calculated as follows:

Classification of food categories

The EAT-Lancet Commission report provides coverage of different food categories in the planetary health diet and their recommended caloric intake levels at 2,500 kcal for adults each day 12 (Supplementary Table 17 ). In this study, we classify 140 products into 13 aggregated food categories according to the planetary health diet 12 , including grains, tubers or starchy vegetables, vegetables, fruits, dairy products, red meat (beef, lamb and pork), chicken and other poultry, eggs, fish, legumes, nuts, added fats (both unsaturated and saturated oils) and all sugars. On the basis of the data availability of the FAOSTAT 4 , 82 , the food products in this study include both primary and processed products (primary and secondary food processing) which can be classified into specific food categories 16 . Ultraprocessed products that combine ingredients from several food categories, such as ice creams made from both dairy and sugar, are not considered. Detailed coverages of each food category and their mapping relationship with specific products are shown in Supplementary Table 18 .

Matching diets with the household-expenditure dataset

We explore the dietary emissions from consumers with different expenditure levels (defined as expenditure groups) using the household-expenditure dataset 41 for the year 2011. The dataset, containing 116 countries and almost 90% of the global population (Supplementary Table 19 ), is primarily based on the household survey microdata from the WBGCD 42 , supplemented by consumer expenditure surveys of national statistical offices from high-income countries such as the United States and European countries 17 , 41 . For every country in the dataset, 201 expenditure groups (grouped according to the per capita total expenditure of each group) and the corresponding population share are listed. The annual per capita expenditure of people in different expenditure groups ranges from <US$50 to ~US$1 million per year (expressed in 2011 Purchasing Power Parities, PPP) 31 , 34 . For each expenditure group, the expenditure for 33 different sectors of goods and services (including 11 food items) and the corresponding expenditure share in national consumption of each sector are provided 31 , 34 , 41 . For some affluent (or poor) countries that do not have a sufficient representative number of people at the bottom (or top) end of the expenditure spectrum, the population in the corresponding expenditure groups is empty. Expenditure shares of 11 food items are matched with the 140 products in this study (Supplementary Table 20 ). We calculate the dietary intake of different food products for each expenditure group in each country by multiplying the food expenditure share of groups with the total dietary intake amounts of food products of each country.

This study assumes that the amount of food consumption is proportionate to food expenditures and the purchasing price for the same product is unchanged across 201 groups ignoring higher prices for high-quality or luxury food items within the same food category. Although the assumption of an unchanged purchasing price is an unsolved limitation shared by similar studies using monetary expenditure data 31 , 34 , 41 , household expenditures on food can still effectively highlight the differences in food consumption and emissions across consumer groups with different affordability of, and spending on, food. We also assume that the proportion of food sources from local production and trade for the same food category remains constant across the 201 groups. In other words, the magnitude of dietary emissions is solely determined by the size and pattern of food expenditure of each group and the associated supply chains for each food consumption item.

For countries that are major food consumers (and emitters) but without data in WBGCD, expenditure shares from countries with similar development levels and eating habits and neighbouring geographical locations are used to calculate the distribution of their food expenditure. We finally select 201 expenditure groups in 139 countries/areas, covering 95% of the global population in 2019 (Supplementary Table 3 and Supplementary Data 3 ). Details for dealing with missing data are provided in Supplementary Table 7 . Countries or areas are then classified into 18 regions for comparison according to geographical locations (Supplementary Table 8 ). The WBGCD expenditure data from the year 2011 are adjusted to PPP in 2019 to represent the expenditure level of populations in figures. Results of emissions from 13 types of food categories of 201 expenditure groups at the national and regional levels are shown in Supplementary Data 8 , 10 and 11 .

Analysis of GF-Gini coefficients

Calculation of gf-gini coefficients.

This study uses the GF-Gini coefficient 33 , 89 , which is based on the well-known Gini coefficient 90 , to measure the inequality of GHG footprints from 201 expenditure groups within countries, regions and globally. The GF-Gini coefficient ranges from 0 to 1, indicating the emission distribution across expenditure groups changes from perfect equality to perfect inequality. The GF-Gini coefficient of each food category is calculated as 33 :

where Gini j indicate the GF-Gini coefficient of food category j (including product i , i = 1, 2, 3, …, n ). Expenditure groups and their population are reordered in ascending order of per capita GHG footprint of food category j and m refers to the reordered number of groups ( m = 1, 2, 3, …, 201). ${D}_{m}^{j}$ and ${Y}_{m}^{j}$ represent the proportions of population and GHG footprints (of food category j ) for each expenditure group, respectively. ${T}_{m}^{j}$ is the cumulative proportion of GHG footprints of each expenditure group. The results of national, regional and global GF-Gini coefficients are shown in Supplementary Tables 9 and 10 .

Regression analysis

We use the regression approach to examine the relationship between the national GF-Gini coefficients and the per capita GDP 91 , 92 of 139 countries/areas. The GF-Gini coefficient of each country is regarded as the dependent variable ( y ) and the national per capita GDP acts as the independent variable ( x ). Initially, locally weighted regression is applied to illustrate the trend lines within the scatterplot. Subsequently, we test different regression methods for validation based on the general trend. Ultimately, we found that logarithmic regression is the most fitting for dietary emissions of most food categories, particularly in the case of animal-based products. Thus, the logarithmic regression is applied.

Scenario of the planetary health diet

Scenario setting and assumptions.

To estimate the emission changes resulting from the transition from the 2019 diet to the global planetary health diet, we build a hypothetical scenario by assuming that individuals belonging to 201 different expenditure groups in all countries will all reach the reference intake level of 13 types of food categories 12 . First, we assume that the proportion of food sources from local production and trade in each country is unchanged, that is, emission changes from dietary shifts would be calculated on the basis of emissions from local production and imports accounting for emissions along global food supply chains, similar to studies by refs. 25 , 26 . At the same time, emission changes induced by decreased food consumption in countries following the planetary health diet, such as carbon uptake from agriculture abandonment 59 or emission increase from non-food biomass production in saved agricultural land 77 , are not considered in this study. Second, we assume that agricultural and food-related production technology, trade patterns and emission intensities of food supply chain processes remain unchanged during the diet transition. Third, fluctuations in food prices induced by altered food demand or the affordability of the planetary health diet for different consumer groups are not considered in this study.

Diet gaps for different food categories

The diet gap (DG) reflects gaps between present dietary intake and the planetary health diet 12 , 25 , as follows:

where ${{\rm{DG}}}_{{\rm{per}}}^{j,r}$ is defined as the percentage ratio of the present per capita caloric intake of food category j in country r each year ( ${{\rm{DI}}}_{{\rm{per}}}^{\,j,r}$ ) to the annual reference level ( ${{\rm{DI}}}_{{\rm{EAT}}\_{\rm{per}}}^{i}$ ). ${{\rm{DI}}}_{{\rm{EAT}\_day\_per}}^{\,j}$ is the recommended per capita caloric intake of food category j each day 12 (Supplementary Table 17 ). We assume a uniform annual calorie reference level for each food category across all populations in all countries. We allow flexibility in local diets by keeping the composition of each food category unchanged, requiring only that the calorie content reaches the reference level. According to the definition, present food intake is considered insufficient compared with reference levels when DG is <100%, while it is deemed excessive and should be reduced when DG is >100%. Daily per capita caloric intake of food categories from 201 expenditure groups of countries or regions are shown in Supplementary Data 12 and 13 . We calculate the DG for food categories of 201 expenditure groups at national and regional levels (Supplementary Data 14 and 15 ).

According to equation ( 1 ), the total emissions per unit of calorie content of food category j in country r ( ${F}_{{\rm{energy}}}^{\;j,r}$ ) can be calculated as:

where E j,r refers to the national emissions due to consumption of food category j in country r . Thus, emission changes for adopting the planetary health diet are calculated as follows:

where $\Delta {E}_{{\rm{intake}}}^{\;j,r}$ represents the national emission changes of food category j in country r , ${E}_{{\rm{intake}}}^{\;j,r}$ is the national emissions from intake of food category j in country r . Changes in dietary emissions of food categories from 201 groups are shown in Supplementary Data 9 . The number of people with increased/decreased emissions from 201 groups is shown in Supplementary Data 19 .

Uncertainty analysis

We assess the uncertainty range of dietary emissions from different food products using a Monte Carlo approach, which simulates the uncertainties caused by activity data, emission factors and parameters in each emission process 16 , 59 , 93 . More details can be found in Supplementary Methods 1 .

Limitations

This study has the following limitations regarding data analysis and scenario setting.

In terms of data analysis, this study is limited by the data availability. First, we use regional household food loss and waste factors of aggregated food categories without more detailed product division at the national level because of a lack of data. There might also be differences between calculated and actual food intake amounts that are unable to be removed, such as animal bones or fruit skins 25 . Second, we use the consumer household-expenditure dataset based on WBGCD for the year 2011, which provides the most precise and detailed differentiation of consumer groups and their consumption patterns within countries so far. We assume that the shares in food expenditure and population for each expenditure group are the same as in 2011. Third, we assume that the composition of different products aggregated in one category consumed by expenditure groups is the same as the national consumption composition and there is no difference in the price of food products purchased by people from different expenditure groups. In addition, data for some populous high- or upper-middle-income countries are missing from the household-expenditure dataset. However, the countries are the world’s major food consumers and emitters, their emission changes due to diet shifts are important for the global food system. We use the expenditure shares of similar countries in the household-expenditure dataset to allocate the distributions of food expenditure in these countries.

In terms of scenario setting, we focus on the impact induced by changes in consumer choices without changing the proportion of food supply sources (domestic production and imports). We do not consider altering the proportions of supply sources and associated emissions in this study. However, future studies may explore the impacts of the production side and supply chains for diet shifts. Moreover, as we focus on the present emission inequality and mitigation potentials within the food system, we assume that the income and expenditure levels of expenditure groups remain unchanged. However, a shift in food supply may affect household income and subsequently alter the household food budgets, especially for populations employed in, or countries reliant on, food-related sectors. Additionally, as a result of data and model limitations, this study does not consider price fluctuations induced by food demand and subsequent changes in household affordability or spillover effects (between food categories or to non-food sectors). Future studies may combine assessment models incorporating elasticities to project the long-term feasibilities and consequences of diet shifts.

Reporting summary

Further information on research design is available in the Nature Portfolio Reporting Summary linked to this article.

Data availability

Data for LULUC, agricultural and beyond-farm emissions and data for physical food consumption are curated by the FAO and can be freely obtained from FAOSTAT 82 , available from ref. 16 . Data of food loss and waste rate are retrieved from FAOSTAT 82 and ref. 25 . The global household-expenditure data are obtained from the World Bank 42 and refs. 17 , 41 . Population data used in this study are obtained from World Population Prospects of the United Nations 86 . Data on per capita GDP in countries can be collected from the World Bank 91 and the International Monetary Fund 92 . Supplementary datasets are also available on Zenodo ( https://doi.org/10.5281/zenodo.11934909 ) 94 . Source data are provided with this paper.

Code availability

Data collection is performed in MATLAB and Microsoft Excel. Code developed for data processing in MATLAB and R in this study is available from Zenodo ( https://doi.org/10.5281/zenodo.11880402 ) 95 .

Springmann, M., Godfray, H. C. J., Rayner, M. & Scarborough, P. Analysis and valuation of the health and climate change cobenefits of dietary change. Proc. Natl Acad. Sci. USA 113 , 4146–4151 (2016).

Article CAS Google Scholar

Kesse-Guyot, E. et al. Sustainability analysis of French dietary guidelines using multiple criteria. Nat. Sustain. 3 , 377–385 (2020).

Article Google Scholar

Crippa, M. et al. Food systems are responsible for a third of global anthropogenic GHG emissions. Nat. Food 2 , 198–209 (2021).

Tubiello, F. N. et al. Pre-and post-production processes increasingly dominate greenhouse gas emissions from agri-food systems. Earth Syst. Sci. Data 14 , 1795–1809 (2022).

Clark, M. A. et al. Global food system emissions could preclude achieving the 1.5 °C and 2 °C climate change targets. Science 370 , 705–708 (2020).

Ivanovich, C. C., Sun, T., Gordon, D. R. & Ocko, I. B. Future warming from global food consumption. Nat. Clim. Change 13 , 297–302 (2023).

Béné, C. et al. Five priorities to operationalize the EAT-Lancet Commission report. Nat. Food 1 , 457–459 (2020).

Navarre, N., Schrama, M., de Vos, C. & Mogollón, J. M. Interventions for sourcing EAT-Lancet diets within national agricultural areas: a global analysis. One Earth 6 , 31–40 (2023).

Laine, J. E. et al. Co-benefits from sustainable dietary shifts for population and environmental health: an assessment from a large European cohort study. Lancet Planet. Health 5 , e786–e796 (2021).

Craig, W. J. Health effects of vegan diets. Am. J. Clin. Nutr. 89 , S1627–S1633 (2009).

Afshin, A. et al. Health effects of dietary risks in 195 countries, 1990–2017: a systematic analysis for the Global Burden of Disease Study 2017. Lancet 393 , 1958–1972 (2019).

Willett, W. et al. Food in the Anthropocene: the EAT-Lancet Commission on healthy diets from sustainable food systems. Lancet 393 , 447–492 (2019).

The State of Food Security and Nutrition in the World 2022: Repurposing Food and Agricultural Policies to Make Healthy Diets More Affordable (FAO, 2022); https://www.fao.org/documents/card/en/c/cc0639en

Bajželj, B. et al. Importance of food-demand management for climate mitigation. Nat. Clim. Change 4 , 924–929 (2014).

Springmann, M. et al. Options for keeping the food system within environmental limits. Nature 562 , 519–525 (2018).

Li, Y. et al. Changes in global food consumption increase GHG emissions despite efficiency gains along global supply chains. Nat. Food 4 , 483–495 (2023).

Hubacek, K., Baiocchi, G., Feng, K. & Patwardhan, A. Poverty eradication in a carbon constrained world. Nat. Commun. 8 , 912 (2017).

Sustainable Development Goals: 17 Goals to Transform Our World (United Nations, 2017); https://www.un.org/sustainabledevelopment/sustainable-development-goals/

Humpenöder, F. et al. Projected environmental benefits of replacing beef with microbial protein. Nature 605 , 90–96 (2022).

Hasegawa, T., Havlík, P., Frank, S., Palazzo, A. & Valin, H. Tackling food consumption inequality to fight hunger without pressuring the environment. Nat. Sustain. 2 , 826–833 (2019).

Kim, B. F. et al. Country-specific dietary shifts to mitigate climate and water crises. Glob. Environ. Change 62 , 101926 (2020).

Denton, F. et al. in Climate Change 2022: Mitigation of Climate Change (eds Shukla, P. R. et al.) 1727–1790 (Cambridge Univ. Press, 2022).

Tilman, D. & Clark, M. Global diets link environmental sustainability and human health. Nature 515 , 518–522 (2014).

Springmann, M. et al. Health and nutritional aspects of sustainable diet strategies and their association with environmental impacts: a global modelling analysis with country-level detail. Lancet Planet. Health 2 , e451–e461 (2018).

Tuninetti, M., Ridolfi, L. & Laio, F. Compliance with EAT-Lancet dietary guidelines would reduce global water footprint but increase it for 40% of the world population. Nat. Food 3 , 143–151 (2022).

Semba, R. D. et al. Adoption of the ‘planetary health diet’ has different impacts on countries’ greenhouse gas emissions. Nat. Food 1 , 481–484 (2020).

Guo, Y. et al. Environmental and human health trade-offs in potential Chinese dietary shifts. One Earth 5 , 268–282 (2022).

Sun, Z. et al. Dietary change in high-income nations alone can lead to substantial double climate dividend. Nat. Food 3 , 29–37 (2022).

Mbow, C. et al. in Climate Change and Land (eds Shukla, P. R. et al.) Ch. 5 (IPCC, 2019); https://www.ipcc.ch/site/assets/uploads/sites/4/2022/11/SRCCL_Chapter_5.pdf

Millward-Hopkins, J. & Oswald, Y. Reducing global inequality to secure human wellbeing and climate safety: a modelling study. Lancet Planet. Health 7 , e147–e154 (2023).

Guan, Y. et al. Burden of the global energy price crisis on households. Nat. Energy 8 , 304–316 (2023).

Hubacek, K. et al. Global carbon inequality. Energy Ecol. Environ. 2 , 361–369 (2017).

Mi, Z. et al. Economic development and converging household carbon footprints in China. Nat. Sustain. 3 , 529–537 (2020).

Bruckner, B., Hubacek, K., Shan, Y., Zhong, H. & Feng, K. Impacts of poverty alleviation on national and global carbon emissions. Nat. Sustain. 5 , 311–320 (2022).

He, P., Baiocchi, G., Hubacek, K., Feng, K. & Yu, Y. The environmental impacts of rapidly changing diets and their nutritional quality in China. Nat. Sustain. 1 , 122–127 (2018).

Rao, N. D. et al. Healthy, affordable and climate-friendly diets in India. Glob. Environ. Change 49 , 154–165 (2018).

He, P., Feng, K., Baiocchi, G., Sun, L. & Hubacek, K. Shifts towards healthy diets in the US can reduce environmental impacts but would be unaffordable for poorer minorities. Nat. Food 2 , 664–672 (2021).

Reynolds, C. J., Horgan, G. W., Whybrow, S. & Macdiarmid, J. I. Healthy and sustainable diets that meet greenhouse gas emission reduction targets and are affordable for different income groups in the UK. Public Health Nutr. 22 , 1503–1517 (2019).

Gustavsson, J., Cederberg, C., Sonesson, U., Van Otterdijk, R. & Meybeck, A. Global Food Losses and Food Waste-Extent, Causes and Prevention (FAO, 2011); https://www.fao.org/3/mb060e/mb060e00.htm

Kummu, M. et al. Lost food, wasted resources: global food supply chain losses and their impacts on freshwater, cropland and fertiliser use. Sci. Total Environ. 438 , 477–489 (2012).

Zhong, H., Feng, K., Sun, L., Cheng, L. & Hubacek, K. Household carbon and energy inequality in Latin American and Caribbean countries. J. Environ. Manag. 273 , 110979 (2020).

Global Consumption Database (World Bank, 2022); https://datatopics.worldbank.org/consumption/

Wier, M., Birr-Pedersen, K., Jacobsen, H. K. & Klok, J. Are CO 2 taxes regressive? Evidence from the Danish experience. Ecol. Econ. 52 , 239–251 (2005).

Hirvonen, K., Bai, Y., Headey, D. & Masters, W. A. Affordability of the EAT-Lancet reference diet: a global analysis. Lancet Glob. Health 8 , e59–e66 (2020).

The State of Food Security and Nutrition in the World 2023 (FAO, 2023); https://doi.org/10.4060/cc3017en

World Bank Country and Lending Groups (World Bank, 2021); https://datahelpdesk.worldbank.org/knowledgebase/articles/906519-world-bank-country-and-lending-groups

Okou, C., Spray, J. A. & Unsal, M. F. D. Staple Food Prices in Sub-Saharan Africa: An Empirical Assessment (International Monetary Fund, 2022); https://www.imf.org/en/Publications/WP/Issues/2022/07/08/Staple-Food-Prices-in-Sub-Saharan-Africa-An-Empirical-Assessment-520567

Delgermaa, D., Yamaguchi, M., Nomura, M. & Nishi, N. Assessment of Mongolian dietary intake for planetary and human health. PLoS Glob. Public Health 3 , e0001229 (2023).

Burkhart, S., Underhill, S. & Raneri, J. Realizing the potential of neglected and underutilized bananas in improving diets for nutrition and health outcomes in the Pacific Islands. Front. Sustain. Food Syst. 6 , 805776 (2022).

Pingali, P. Agricultural policy and nutrition outcomes—getting beyond the preoccupation with staple grains. Food Secur. 7 , 583–591 (2015).

Sibhatu, K. T. & Qaim, M. Rural food security, subsistence agriculture and seasonality. PloS ONE 12 , e0186406 (2017).

Headey, D. D. & Alderman, H. H. The relative caloric prices of healthy and unhealthy foods differ systematically across income levels and continents. J. Nutr. 149 , 2020–2033 (2019).

Bai, Y., Alemu, R., Block, S. A., Headey, D. & Masters, W. A. Cost and affordability of nutritious diets at retail prices: evidence from 177 countries. Food Policy 99 , 101983 (2021).

Batis, C. et al. Adoption of healthy and sustainable diets in Mexico does not imply higher expenditure on food. Nat. Food 2 , 792–801 (2021).

Bennett, M. K. International contrasts in food consumption. Geogr. Rev. 31 , 365–376 (1941).

D’Odorico, P. et al. The global food–energy–water nexus. Rev. Geophys. 56 , 456–531 (2018).

Traditional Pacific Island Crops (Univ. Hawaii, 2024); https://guides.library.manoa.hawaii.edu/paccrops

Fiji—Agricultural Commodities (International Trade Administration, 2022); https://www.trade.gov/country-commercial-guides/fiji-agricultural-commodities

Hong, C. et al. Global and regional drivers of land-use emissions in 1961–2017. Nature 589 , 554–561 (2021).

Hong, C. et al. Land-use emissions embodied in international trade. Science 376 , 597–603 (2022).

Darmon, N., Lacroix, A., Muller, L. & Ruffieux, B. Food price policies improve diet quality while increasing socioeconomic inequalities in nutrition. Int. J. Behav. Nutr. Phys. Act. 11 , 66 (2014).

Poore, J. & Nemecek, T. Reducing food’s environmental impacts through producers and consumers. Science 360 , 987–992 (2018).

Bacon, L. & Krpan, D. (Not) Eating for the environment: the impact of restaurant menu design on vegetarian food choice. Appetite 125 , 190–200 (2018).

Swinburn, B. A. et al. The global syndemic of obesity, undernutrition and climate change: the Lancet Commission report. Lancet 393 , 791–846 (2019).

Geyik, O., Hadjikakou, M., Karapinar, B. & Bryan, B. A. Does global food trade close the dietary nutrient gap for the world’s poorest nations? Glob. Food Secur. 28 , 100490 (2021).

Pradhan, P., Fischer, G., Van Velthuizen, H., Reusser, D. E. & Kropp, J. P. Closing yield gaps: how sustainable can we be. PloS ONE 10 , e0129487 (2015).

Sánchez, P. A. Tripling crop yields in tropical Africa. Nat. Geosci. 3 , 299–300 (2010).

Huang, J., Pray, C. & Rozelle, S. Enhancing the crops to feed the poor. Nature 418 , 678–684 (2002).

The State of Food Security and Nutrition in the World 2020. Transforming Food Systems for Affordable Healthy Diets (FAO, 2020); https://www.fao.org/documents/card/en?details=ca9692en

Allcott, H. et al. Food deserts and the causes of nutritional inequality. Q. J. Econ. 134 , 1793–1844 (2019).

Springmann, M., Clark, M. A., Rayner, M., Scarborough, P. & Webb, P. The global and regional costs of healthy and sustainable dietary patterns: a modelling study. Lancet Planet. Health 5 , e797–e807 (2021).

Darmon, N. & Drewnowski, A. Contribution of food prices and diet cost to socioeconomic disparities in diet quality and health: a systematic review and analysis. Nutr. Rev. 73 , 643–660 (2015).

Baylis, K., Peplow, S., Rausser, G. & Simon, L. Agri-environmental policies in the EU and United States: a comparison. Ecol. Econ. 65 , 753–764 (2008).

Swinnen, J. The right price of food. Dev. Policy Rev. 29 , 667–688 (2011).

Headey, D. D. Food prices and poverty. World Bank Econ. Rev. 32 , 676–691 (2018).

Google Scholar

Headey, D. & Hirvonen, K. Higher food prices can reduce poverty and stimulate growth in food production. Nat. Food 4 , 699–706 (2023).

Gatto, A., Kuiper, M. & van Meijl, H. Economic, social and environmental spillovers decrease the benefits of a global dietary shift. Nat. Food 4 , 496–507 (2023).

Puma, M. J., Bose, S., Chon, S. Y. & Cook, B. I. Assessing the evolving fragility of the global food system. Environ. Res. Lett. 10 , 024007 (2015).

Davis, K. F. et al. Alternative cereals can improve water use and nutrient supply in India. Sci. Adv. 4 , eaao1108 (2018).

Le Quéré, C. et al. Temporary reduction in daily global CO 2 emissions during the COVID-19 forced confinement. Nat. Clim. Change 10 , 647–653 (2020).

Shan, Y. et al. Impacts of COVID-19 and fiscal stimuli on global emissions and the Paris Agreement. Nat. Clim. Change 11 , 200–206 (2021).

FAOSTAT Database (FAO, 2022); https://www.fao.org/faostat/en/

Supply Utilization Accounts, Food Blances, FAOSTAT Online Database (FAO, 2022); https://www.fao.org/faostat/en/#data/SCL

Kastner, T., Kastner, M. & Nonhebel, S. Tracing distant environmental impacts of agricultural products from a consumer perspective. Ecol. Econ. 70 , 1032–1040 (2011).

Kastner, T., Erb, K.-H. & Haberl, H. Rapid growth in agricultural trade: effects on global area efficiency and the role of management. Environ. Res. Lett. 9 , 034015 (2014).

World Population Prospects 2022 (United Nations, 2022); https://population.un.org/wpp/Download/Standard/Population/

Food Balance Sheets—A Handbook (FAO, 2001); https://www.fao.org/3/x9892e/X9892e05.htm#P8217_125315

Nutritive Factors (FAO, 2023); https://www.fao.org/economic/the-statistics-division-ess/publications-studies/publications/nutritive-factors/en/

Wiedenhofer, D. et al. Unequal household carbon footprints in China. Nat. Clim. Change 7 , 75–80 (2017).

Gini, C. Measurement of inequality of incomes. Econ. J. 31 , 124–125 (1921).

The World Bank Data: GDP per Capita (Current US$) (World Bank, 2023); https://data.worldbank.org/indicator/NY.GDP.PCAP.PP.CD

Datasets, World Economic Outlook (April 2023): GDP per Capita, Current Prices (IMF, 2023); https://www.imf.org/external/datamapper/NGDPDPC@WEO/OEMDC/ADVEC/WEOWORLD

Xu, X. et al. Global greenhouse gas emissions from animal-based foods are twice those of plant-based foods. Nat. Food 2 , 724–732 (2021).

Li, Y. et al. Supplementary Datasets for ‘Reducing climate change impacts from the global food system through diet shifts’. Zenodo https://doi.org/10.5281/zenodo.11934909 (2024).

Li, Y. et al. Code for ‘Reducing climate change impacts from the global food system through diet shifts’. Zenodo https://doi.org/10.5281/zenodo.11880402 (2024).

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Acknowledgements

This study was supported by the National Natural Science Foundation of China (grant nos 72243004, 32101315, 71904098). Y.S. and S.S. acknowledge support from the National Natural Science Foundation of China (grant no. 72243004). Yu Li acknowledges support from the National Natural Science Foundation of China (grant no. 32101315). P.H. acknowledges support from the National Natural Science Foundation of China under a Young Scholar Programme Grant (grant no. 71904098). Yanxian Li and Y.H. acknowledge the funding support by the China Scholarship Council PhD programme. We thank Y. Zhou for supporting visualization and J. Yan for assisting in writing and revising. For the purpose of open access, a CC BY public copyright license is applied to any author accepted manuscript arising from this submission.

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Yanxian Li, Y.S. and K.H. designed the research. Yanxian Li performed the analysis with support from P.H., Yu Li, Y.H. and S.S. on analytical approaches and visualization. Yanxian Li led the writing with efforts from P.H., Y.S., F.R. and K.H. Y.S. and K.H. supervised and coordinated the overall research. All co-authors reviewed and commented on the manuscript.

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Li, Y., He, P., Shan, Y. et al. Reducing climate change impacts from the global food system through diet shifts. Nat. Clim. Chang. (2024). https://doi.org/10.1038/s41558-024-02084-1

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Deadly Landslides in India Made Worse by Climate Change, Study Finds

Extreme rainfall made 10 percent heavier by human-caused climate change triggered landslides that killed hundreds, according to a new study.

People wearing red shirts walk through muddy area littered with debris

By Austyn Gaffney

A sudden burst of rainfall on July 30 caused a cascade of landslides that buried hundreds of people in the mountainous Kerala region of southern India.

That downpour was 10 percent heavier because of human-caused climate change, according to a study by World Weather Attribution, a group of scientists who quantify how climate change can influence extreme weather. Nearly six inches, or 150 millimeters, of rain fell on soils already highly saturated from two months of monsoon and marked the third highest single-day rain event on record for India.

“The devastation in northern Kerala is concerning not only because of the difficult humanitarian situation faced by thousands today, but also because this disaster occurred in a continually warming world,” said Maja Vahlberg, a climate risk consultant at the Red Cross Red Crescent Climate Centre. “The increase in climate-change-driven rainfall found in this study is likely to increase the number of landslides that could be triggered in the future.”

In a state that is highly prone to landslides, the Wayanad district is considered the riskiest part. As of Tuesday, at least 231 people had died and 100 remained missing.

The Kerala landslides were the second extreme landslide event in July, following one in Ethiopia that killed 257 people. July was the second-worst month on record, after July 2019, with 95 landslide events that caused 1,167 fatalities , according to data maintained by Dave Petley, the vice-chancellor of the University of Hull. Together, they caused roughly one-third of the more than 3,600 deaths resulting from some 429 fatal landslides recorded this year, Dr. Petley said in an email.

Already, 2024 is an outlier, Dr. Petley posted to The Landslide Blog on Tuesday . He wrote that he could “only speculate on the likely underlying reasons for this very high incidence of fatal landslides,” but “the most likely cause continues to be the exceptionally high global surface temperatures, and the resultant increase in high intensity rainfall events.”

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Open Access

The physical science basis of climate change empowering transformations, insights from the IPCC AR6 for a climate research agenda grounded in ethics

Roles Writing – original draft

* E-mail: [email protected]

Affiliation Institut Pierre Simon Laplace / Laboratoire des Sciences du Climat et de l’Environnement (UMR8212), CEA Saclay, Université Paris Saclay, Gif-sur-Yvette, France

Valérie Masson-Delmotte

Published: August 5, 2024

https://doi.org/10.1371/journal.pclm.0000451
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Citation: Masson-Delmotte V (2024) The physical science basis of climate change empowering transformations, insights from the IPCC AR6 for a climate research agenda grounded in ethics. PLOS Clim 3(8): e0000451. https://doi.org/10.1371/journal.pclm.0000451

Editor: Jamie Males, PLOS Climate, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND

Copyright: © 2024 Valérie Masson-Delmotte. This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Funding: The authors received no specific funding for this work.

Competing interests: The author has declared that no competing interests exist.

This manuscript builds upon a keynote presentation invited at the World Climate Research Programme (WCRP) Open Science Conference in October 2023 [ 1 ], at the start of the IPCC 7 th Assessment Cycle (AR7).

A fast changing climate and a fast shrinking remaining carbon budget calling for reactivity

As climate scientists, we operate in a changing context. At the start of the IPCC AR6, in 2015, there were major advances in international cooperation towards sustainability, leading to the implementation of several new frameworks, including the UN Sendai Framework for Disaster Risk Reduction, Sustainable Development Goals, New Urban Agenda and the Paris Agreement [ 2 ].

Within the AR6 cycle, a strong emphasis was placed on the interplay between climate change, ecosystems and biodiversity with, for the first time, a joint workshop between IPCC and IPBES [ 3 ], and the implementation in 2022 of the UN Convention on Biological Diversity Kunming-Montréal Global Biodiversity Framework.

In 2023, the AR6 IPCC Synthesis Report [ 4 ] emphasized that the pace and scale of current climate action is not sufficient to limit the escalation of climate-related risks, with a rapidly narrowing window of opportunity to enable climate resilient development, and the key role of sharing knowledges to support transformative changes.

With a fast changing climate ( Fig 1 ), regular updates of the state of climate are critical to inform society–more frequently than IPCC reports, with AR7 outcomes expected by 2028. Such efforts have already been implemented for the global carbon budget [ 5 ] and the annual state of climate [ 6 ] and extreme events [ 7 , 8 ]. Grounded in updates in observational datasets and the same methodologies underpinning the AR6 WGI report [ 9 ], a new coordinated effort provides annual updates to key indicators of the state of global climate, showing changes in radiative forcing, Earth’s energy imbalance, and human-caused global warming occurring at an increasing pace [ 10 ]. Such annual updates to attributable global and regional warming now open the possibility of annual updates to observationally-constrained global and regional projections [ 11 , 12 ].

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The remaining carbon budget from 2023 onwards compatible with limiting global warming to 1.5°C has been reduced by a factor of two compared to its IPCC 2021 estimate [ 9 ], shrinking to around 250 GtCO2—expected to be exhausted within around 6 years at the current rate of emissions [ 13 ], thus inexorably leading to exceed this 1.5°C level of warming within a decade. Understanding the increased rate of the Earth’s energy imbalance [ 14 ] also calls for updates in estimates of aerosol forcings, climate feedbacks [ 15 ], and carbon cycle consequences of ecosystem degradation [ 5 ].

Efforts are also needed to provide regular updates to committed changes from delayed responses of glaciers [ 16 ], ice sheets and the deep ocean, and unavoidable sea-level rise [ 17 ], and, when onsets can be unequivocally detected, implications of dynamical instabilities in specific Antarctic sectors [ 18 ].

Every further increment of global warming brings us further outside of the range of the state of climate of the past recent thousands of years. Systematic approaches to update IPCC assessments of ongoing and projected changes grounded in multiple lines of evidence, including insights from past climates, are also needed [ 19 ]. New evidence suggests that the current atmospheric CO 2 concentration is unprecedented in not just the last 3 but the last 14 million years [ 20 ]. Recently, new methods have allowed to combine paleoclimate evidence with advanced understanding of climate pattern effects, further narrowing the upper bound of equilibrium climate sensitivity [ 21 ].

A major expectation for climate science is making sense of observations, compared to earlier projections [ 22 ]. So far, such comparisons with various projections are available based on volunteer individual updates on several science-related blogs [ 23 – 25 ]. Regular updates are needed to understand whether recent observed changes are consistent with the current understanding and modelling of forcings, internal variability and feedbacks, or whether exceptional events do challenge current understanding [ 26 , 27 ]. By 2023 –the warmest year on instrumental records, observational datasets show that global surface temperature anomalies have increasingly frequently reached or exceeded 1.5°C above 1850–1900 at the monthly scale, and for the first time close to this level for an annual average [ 28 ]. The likelihood of such occurrences will increase with the level of global warming, and is expected to occur every second year by the early 2030s, when such a level of global warming is expected to be reached and exceeded. With natural variability modulating human-driven trends, climate science communication can be challenging–navigating between perceptions of slowdowns and surges [ 23 ]. Shared tools are needed to place recent observations within the spread of earlier IPCC constrained projections, and to use attribution outcomes to constrain future global and regional projections [ 29 , 30 ].

A recent example highlighting the urgent need for such analyses is the sharp decrease in Antarctic sea-ice extent, plausibly a regime shift [ 31 ] related to the Southern Ocean heat uptake [ 32 ], and with major implications for confidence in future sea-ice projections [ 33 ] and risks of irreversible loss of related ecosystems and unique biodiversity [ 34 ].

Attribution studies and climate justice

With human-caused climate change exacerbating extreme events, leading to widespread impacts, in every region, we also need regular updates regarding observed regional changes in the frequency and intensity of extreme events, and event attribution outcomes. The “hexagon” figures in recent IPCC reports [ 4 , 9 ] highlighted knowledge gaps due to limited data availability and lack of studies in regions of high vulnerability—a matter of climate justice and support to the loss and damage mechanism [ 35 , 36 ]. Knowledge gaps also arise from the length of instrumental records, which could be complemented by paleoclimate evidence, and mismatches between simulations and observations, for instance with European hot extremes increasing twice faster than simulated during recent decades [ 37 ].

Since the IPCC 2021 assessment, rapid attribution studies performed within the World Weather Attribution project expand the knowledge basis for high-impact extreme heat, extreme droughts worsened by increased evaporation in a warmer climate, fire weather and extreme rainfall events across multiple regions. However, a framework to bring together studies using different lines of evidence and different attribution methodologies is missing to allow for regular robust updates and their expansion to ocean, cryosphere, compound and cascading extremes [ 38 ].

Facing the massive production of peer-review publications in climate science

With a growing production of climate knowledge worldwide, the number of peer-review papers with the keyword “climate change” published every year has doubled within the time span of the IPCC AR6, from around 30,000 per year in 2015 to more than 60,000 per year in 2022 [ 39 ], with around 2/3 arising from ocean and atmosphere sciences. While peer review is a key filter for scientific quality, any manuscript currently can currently be published in ever-increasing predatory journals or non-reviewed archive services, independently of its quality. Such challenges are strengthened by recent surges in AI-based tools and new challenges for science integrity [ 40 , 41 ]. This is overwhelming, and calls our community to sharpen ethics of publications, avoid predatory journals, strengthen open science, open data and open code practices—including transparency related to reviewers, reviews, and accessibility of publications, and explore new publishing models and state of knowledge assessment practices. In this context, regionally coordinated activities are needed to digest and distillate new evidence, including grey literature from climate services, so as to consolidate a robust regionally-relevant evidence basis. Topical review groups are needed to help make sense of new or conflicting evidence and support the maturation of climate science, placing new lines of evidence within a common picture of the current state of knowledge.

This is also a major communication challenge, exacerbated by press releases and sensationalist news headlines exaggerating the alarming or reassuring findings of any single study, which is confusing for the general public and policy makers. This confusing communication towards the general public has been spectacular in 2023 and 2024 on issues associated with deep uncertainty, such as new studies focused on potential instability of sectors of the Antarctic ice sheet [ 42 , 43 ], or conditions for abrupt changes of the Atlantic Meridional Overturning Circulation [ 44 – 46 ].

Building on the experience of early career scientists group reviews of AR6 IPCC reports [ 47 ], more initiatives are needed to train young scientists from around the world to update the assessment of the state of knowledge on topics that they themselves find exciting, so that a new generation of scientists will be better prepared to sharpen the next IPCC reports, and communicate the updated state of knowledge to the general public.

A changing context at the start of the IPCC AR7—A critical decade

The world in which we operate, as climate scientists, is changing fast ( Fig 2 ). With technological innovation, energy efficiency, and reduced rates of global deforestation, current policies have avoided 4 to 8 billion tons CO 2 -eq emissions globally, and made very high future warming pathways less plausible [ 4 ]. An optimistic estimate of COP28 outcomes, if all pledges were to be kept, implies global greenhouse gas emissions to decrease from around 10% by 2030, far less than in pathways allowing to limit global warming well below 2°C or close to 1.5°C [ 48 ].

Panel from the IPCC AR6 Synthesis Report [ 4 ]. Observed (1900–2020) and projected (2021–2100) changes in global surface temperature (relative to 1850–1900), which are linked to changes in climate conditions and impacts, illustrate how the climate has already changed and will change along the lifespan of three representative generations born in 1950, 1980 and 2020 (including generations of climate scientists). Future projections (2021–2100) of changes in global surface temperature are shown for very low (SSP1-1.9), low (SSP1-2.6), intermediate (SSP2-4.5), high (SSP3-7.0) and very high (SSP5-8.5) GHG emissions scenarios. Very high emission scenarios are considered less plausible due to current policies (closest to SSP2-4.5) and low carbon technological advances [ 4 ]. Changes in annual global surface temperatures are presented as ‘climate stripes’, with future projections showing the human-caused long-term trends and continuing modulation by natural variability (represented here using observed levels of past natural variability).

https://doi.org/10.1371/journal.pclm.0000451.g002

Inadequate progress towards sustainable development goals, growing food insecurity, and backlashes to climate and environmental policies are widespread. The slow pace of climate action, societal tensions, the escalation of climate change impacts and losses and damages fuel increasing climate anxiety–also affecting the mental health of climate scientists. COVID19 pandemic lockdowns added stress to observing systems which remain challenging to maintain. New obstacles to scientific collaborations, for instance in the Arctic, have emerged following the invasion of Ukraine by Russia. Inflation, growing inequalities, nationalism and populism, declining social coherency fuel political polarization, with populist parties embedding the defamation of scientific expertise, denial of both climate science and the urgency of transformative action within their core values. With social networks, the spread of disinformation and the weight given to opinions above evidence erodes the overall trust in science.

How to best operate, as a scientific community, in that fast changing context? This calls for careful attention to the equity and plausibility of scenarios underpinning future climate projections [ 49 ], with due attention to biogeophysical constraints from a warming world–for instance, hard limits for sustainable use of groundwater [ 50 ] and forest biomass [ 51 ] at regional scales. Reactivity is important in order to develop timely new robust knowledge exploring the climate change and climate action implications of e.g. lockdowns from a pandemic, stratospheric water vapor injection from a volcanic eruption, regulations for shipping fuel sulfur content, or armed conflicts. IPCC could learn from the more flexible IPBES processes allowing to convey timely interdisciplinary workshops and provide relevant peer-review workshop reports [ 3 , 52 ].

Effective climate action also requires actionable knowledge, including methods to assess the effects of mitigation and adaptation measures, guidance to avoid maladaptation and malmitigation, knowledge to support sustainable use of ocean, land, water, and sustainable cities–including how to maximize climate and air quality benefits. Climate information needs to be specifically coproduced with those most vulnerable, in climate change hotpots [ 53 ].

The framework of climatic impact-drivers developed in the IPCC AR6 WGI report was not sufficiently informed by ecosystem and biodiversity stewardship needs [ 54 ] calling for robust assessments of methodologies to develop relevant climate information (e.g. climate velocity) at required scales.

The multiple regional consequences of global sea-level rise are emerging, including chronic high-tide flooding [ 55 ], extreme sea level events, salinization and coastal erosion–with needs for attribution and confidence in projections of at the scale of settlements. New ethical questions arise from research needs from planned relocation.

Climate research for a 1.5°C warmer world

Human-driven trends resulting from future emissions are expected to lead to 20-year average global warming overshooting a level of 1.5°C within around a decade [ 4 ]. Informing risk management and adaptation strategies calls for advancing the knowledge basis on the full possible severity of direct consequences, including the low-likelihood, high-risk plausible extreme events and unprecedented combinations of events, accounting for the worse possible combinations of human-caused trends and internal climate variability [ 56 ] and long-term outcomes [ 57 ]. Better understanding what would be the possible irreversible consequences of various intensities and durations of overshoot are critical to inform global responses, including for committed glacier loss, potential tipping points, sea-level rise, ecosystem degradation and biodiversity losses [ 58 ].

Theoretically, returning from a temporary overshoot is conditional on sharp emission reductions, reaching net zero CO 2 emissions with limited cumulative CO 2 emissions, followed by the ability to sustain various magnitudes of net negative CO 2 emissions. Knowledge advances are needed to narrow uncertainties from the response of carbon cycle feedbacks, including biological processes resulting from ecosystem disturbances and degradations, which could also be triggered by natural variability within a 1.5°C warmer world. While theoretical studies using simplified emulators rely on large-scale carbon dioxide removal to return to 1.5°C after a temporary overshoot, the plausibility of such pathways lacks a robust evidence basis [ 59 ] on feasibility, costs, permanency and risks, accounting for their demands for low-carbon energy, water, biomass and land–in particular when massive amounts of low-carbon energy production are primarily needed to phase-out fossil fuels.

Following COP28, the new resources allocated to loss and damage remain small (around 0.7 billion $) compared to the needs estimated to reach 100 to 400 billion $ per year by 2023. This mismatch highlights the rejection of loss and damage liability by the largest historical and current emitters of greenhouse gases. The framing of solar radiation modification research cannot be restricted to the uncertainties regarding potential interventions and the modelled response of the climate system. Such approaches call for embedding the myriad of ethical questions grounded in its purpose, including the implications of altering the global environment rather than modifying our practices to preserve it, and risk of multi-century legacies of deployment [ 60 ]. Ethical questions also arise from the embedded power relations, the values and interests of billionaire philanthropies who chose to fund specifically these research activities [ 61 ], at the expense of other climate research directions, and the possible conflicts of interests which encompass space agencies and climate scientists themselves. Consideration of solar radiation modification also needs to explore governance challenges [ 62 , 63 ], including mechanisms of liability for attributable unintended outcomes.

Projecting climate sciences towards mid-century: Different possible worlds

Today’s PhD students will be my age by 2050, when the 10 th IPCC assessment cycle would be due. The expectations from climate research would be very different in different 2050 worlds [ 64 ]. At the pace of current policies, intermediate or high emissions pathways would lead to exceed a level of 2°C of global warming by 2050 –uncharted territory for the past millions of years. In a fragmented, uncoordinated world, climate scientists would be monitoring novel climate conditions, and learn from Earth system responses to increasing emissions, loss of ecosystems and nature’s contributions to people, cascading impacts, eroding food, water, habitat security, public health, leading to more poverty traps. What would be the science-society relationships with growing public unrest and political destabilization from climate disruptions? Facing complex crises, governments and funding agencies would search for rapidly conceived mitigation plans, without long-term planning, testing, and careful attention to the multiple dimensions of sustainability, with the risk of increased pressures on ecosystems, water and food security–and with fewer ecosystem-based and water-related adaptation response options available.

If different choices are made in the coming decades, the world by 2050 could be on track towards carbon neutrality, and climate science assessments could be monitoring the emergence of climate stabilization–learning from the success story of ozone assessment reports. Advances in climate sciences would support the management of intermittent renewable energy production and energy storage, inform transformative, proactive adaptation measures, support to poor and disadvantaged communities struggling with the growing burden of climate impacts. Transdisciplinary research practices would expand to understand the implications of species movements and novel ecosystems, and inform ecosystem stewardship and durable land and ocean carbon storage. Regular revisions of sea level projections following the detection of onset of ice sheet instability processes would be strongly embedded in deliberations and choices related to sea level rise and coastal management, including planned relocations. By 2050, in such a world successfully embedding climate action, climate research activities, encompassing monitoring networks, remote sensing, field studies, laboratory analyses and modelling activities would be carbon neutral. This also calls for leadership of climate scientists on reducing now our own carbon footprint at the pace and scale consistent with our own knowledge.

Multiple expectations for the climate research community

WCRP plays a key role to tackle knowledge gaps, including convection and clouds, ocean and atmospheric dynamics, climate variability, Earth system feedbacks and thresholds in a warming world.

The vulnerability of land carbon to climate change and its role for mitigation call for improvements in inventories and processes involving soil organic matter, plant hydraulics and mortality, competition dynamics and disturbance processes–with stronger integration of biological and ecological sciences within climate sciences. Similarly, advances in land surface processes, including plant physiological changes, as well as groundwater recharge and land use and water management changes, are needed to improve future projections of aridity and drought.

Advances in fundamental climate research are the backbone to strengthen the knowledge basis required to address the myriad of expectations from climate sciences: knowledge relevant for mitigation, including air quality, pressure on land and litigation, and knowledge relevant for loss and damage, risk management, humanitarian responses, ecosystem and biodiversity stewardship, sectoral and regional adaptation and climate services.

New pathways have to be designed to offer career paths to scientists who are funded first because of urgent societal needs so that they also have opportunities to contribute to curiosity-driven, frontier research. Developing actionable knowledge, with salience, legitimacy and credibility, calls for in an in-depth understanding of the diverse values, perspectives, power relations and inequalities. Ethics, equity, climate justice and intra-species justice provide strong frameworks to advance the fitness and usefulness of climate information in under-studied regions, and explore the unintended consequences and potential harms emerging from misuses of climate information.

Multiple expectations encompass advancing tools and methods to provide more accurate information on complex and cascading risk which will be the hardest to manage and undermine sustainability aspirations in the near-term, as well as long-term outcomes, over multiple centuries beyond 2100, with due attention to post-forcing recovery and irreversibility, including habitats, ecosystems and biodiversity, and tipping points. Efforts are required towards the maturation of the framework of analysis of e.g. ice sheet instabilities, irreversible retreat, and their implications for pace and magnitude of sea-level rise over decades to centuries. Such a collective framework allowing to make sense of scientific advances and sometimes conflicting evidence arising from different methods is needed to better communicate the evolving state of knowledge with society [ 57 ].

Which roles for climate scientists

In a fragmented world, where growing South-North tensions challenge multilateralism, science diplomacy requires strong science-policy institutions and scientific advisory bodies at all governance scales. Institutional approaches play a key role to advance climate knowledge for effective and well-informed decision-making processes.

This also calls for climate scientists to better understand the diverse values and motivations [ 65 ], learning from social sciences and humanities [ 66 ], understanding powerful economic, political interests, and power relations [ 61 ], and to implement structured dialogues with the private sector so that corporate responsible approaches are grounded in the best available science [ 67 ]. While corporate responsibility approaches are currently focused on greenhouse gas emissions and transition risks, new knowledge is also required to advance corporate adaptation and resilience strategies, including their supply chains. For instance, the AR6 assessment remained limited for the implications of shifting agroclimate zones for important fiber and tree crops.

Making science meaningful for all is a challenge for effective climate science communication and knowledge co-production processes. Conversational artificial intelligence tools provide new opportunities make the outcomes of scientific assessments more broadly accessible, in plain language and in multiple languages, with the potential for more interactive engagement approaches [ 68 ]. IPCC could run an expert meeting on artificial intelligence tools and IPCC assessments, with multiple possible applications to support authors of assessment reports, ranging from systematic literature surveys to translations across multiple languages. Empowerment arises from knowledge, calling for democratization of climate science, with growing experiences from eg. citizen assembly approaches, and the involvement of climate scientists within deliberation processes. Science institutions need to encompass ethics of engagement within academic freedom and responsibility [ 69 ], together with resources and support for engaged climate scientists, and valuing their public engagement within their career paths.

While climate literacy is not sufficient to trigger climate action—as illustrated by recurrent discourses of climate delay within the scientific community [ 70 ], it is necessary. Trustworthy updated pedagogic classroom resources which can be used by teachers are needed for initial and continued education at all education levels [ 71 ]. Climate scientists also have a role to play to overcome current gaps related to the strengthening, monitoring and evaluation of climate literacy.

Evolution of climate science practices within societal transformations

Our changing context also calls for transformation of climate research, strengthening its ethics of research and practice, open science approaches, inclusivity and openness to multiple perspectives and novel ideas. Early and mid-career scientists at the WCRP 2023 Open Science Conference were asking for their voices to be better heard, and be better supported, in terms of professional well-being and mental health.

In a world where climate scientists can still be censored in their public expression, curiosity-driven research, academic freedom, and freedom of communication and engagement needs to be strongly supported.

Finally, climate research needs leadership to reduce the carbon and environmental footprints of research activities, building on shared tools, methodologies [ 72 ], collective deliberation processes to make the smartest use of travel [ 73 ], field and lab work, and computing resources [ 74 , 75 ], changing collective academic norms, and strengthening recognition for environmental engagement from funding agencies and for scientific careers.

These are key ingredients for stimulating, meaningful, attractive, rewarding climate research—critical to motivate brilliant minds to advance knowledge.

Acknowledgments

I thank the World Climate Research Programme for inviting me to give this keynote presentation at the Kigali Open Science Conference in October 2023, in Rwanda. I thank members of the IPCC WGI AR6 Bureau and its Technical Support Unit, in particular Anna Pirani and Sarah Connors, for multiple stimulating exchanges regarding climate science and science-society interplays. Special thanks to Catherine Michaut from the International Support Unit of Institut Pierre Simon Laplace for writing the transcript of my keynote lecture, forming the basis of this article. I also thank Yangyang Xu and two other anonymous reviewers for their constructive review comments.

1. World Climate Research Programme, Open Science Conference, Kigali, Rwanda, 2023. Available: https://wcrp-osc2023.org/ .
View Article
Google Scholar
4. Calvin K, Dasgupta D, Krinner G, Mukherji A, Thorne PW, Trisos C, et al. IPCC, 2023: Climate Change 2023: Synthesis Report. Contribution of Working Groups I, II and III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Core Writing Team, H. Lee and J. Romero (eds.)]. IPCC, Geneva, Switzerland. First. Intergovernmental Panel on Climate Change (IPCC); 2023 Jul. https://doi.org/10.59327/IPCC/AR6-9789291691647
9. Intergovernmental Panel on Climate Change (IPCC). Climate Change 2021 –The Physical Science Basis: Working Group I Contribution to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge: Cambridge University Press; 2023. https://doi.org/10.1017/9781009157896
PubMed/NCBI
39. (analysis based on Web of Science, in October 2023).
48. https://climateactiontracker.org/publications/cop28-initiatives-create-buzz-will-only-reduce-emissions-if-followed-through/ .
52. IPBES. Workshop Report on Biodiversity and Pandemics of the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES). [object Object]; 2020 Oct. https://doi.org/10.5281/ZENODO.4147317
64. Seneviratne S. and Rogelj J. and Séférian R. and Allen M. R. and Buckerige M. and Ebi C., et al. Cross-Chapter Box 8: 1.5°C Warmer Worlds. 1st ed. IPCC, 2018: Global Warming of 15°C An IPCC Special Report on the impacts of global warming of 15°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty [Masson-Delmotte V, Zhai P, Pörtner H-O, Roberts D, Skea J, PR Shukla, Pirani A, Moufouma-Okia W, Péan C, Pidcock R, Connors S, Matthews JBR, Chen Y, Zhou X, Gomis MI, Lonnoy E, Maycock T, Tignor M, and Waterfield T(eds)]. 1st ed. Cambridge University Press; 2022. https://doi.org/10.1017/9781009157940
66. https://www.cultureclimatemeeting.org/ .
67. https://www.un.org/en/climatechange/high-level-expert-group .
68. https://huggingface.co/spaces/Ekimetrics/climate-question-answering .
69. https://comite-ethique.cnrs.fr/en/comets-opinion-freedom-and-responsibility-academic-researchers-public-advocacy/ .
71. https://www.oce.global/en .
72. https://labos1point5.org/ .
76. State of the Global Climate 2023. WMO; p. 53. Report No.: 1347. Available: https://library.wmo.int/idurl/4/68835 .

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Climate Change: Evidence and Causes: Update 2020 (2020)

Chapter: conclusion, c onclusion.

This document explains that there are well-understood physical mechanisms by which changes in the amounts of greenhouse gases cause climate changes. It discusses the evidence that the concentrations of these gases in the atmosphere have increased and are still increasing rapidly, that climate change is occurring, and that most of the recent change is almost certainly due to emissions of greenhouse gases caused by human activities. Further climate change is inevitable; if emissions of greenhouse gases continue unabated, future changes will substantially exceed those that have occurred so far. There remains a range of estimates of the magnitude and regional expression of future change, but increases in the extremes of climate that can adversely affect natural ecosystems and human activities and infrastructure are expected.

Citizens and governments can choose among several options (or a mixture of those options) in response to this information: they can change their pattern of energy production and usage in order to limit emissions of greenhouse gases and hence the magnitude of climate changes; they can wait for changes to occur and accept the losses, damage, and suffering that arise; they can adapt to actual and expected changes as much as possible; or they can seek as yet unproven “geoengineering” solutions to counteract some of the climate changes that would otherwise occur. Each of these options has risks, attractions and costs, and what is actually done may be a mixture of these different options. Different nations and communities will vary in their vulnerability and their capacity to adapt. There is an important debate to be had about choices among these options, to decide what is best for each group or nation, and most importantly for the global population as a whole. The options have to be discussed at a global scale because in many cases those communities that are most vulnerable control few of the emissions, either past or future. Our description of the science of climate change, with both its facts and its uncertainties, is offered as a basis to inform that policy debate.

A CKNOWLEDGEMENTS

The following individuals served as the primary writing team for the 2014 and 2020 editions of this document:

Eric Wolff FRS, (UK lead), University of Cambridge
Inez Fung (NAS, US lead), University of California, Berkeley
Brian Hoskins FRS, Grantham Institute for Climate Change
John F.B. Mitchell FRS, UK Met Office
Tim Palmer FRS, University of Oxford
Benjamin Santer (NAS), Lawrence Livermore National Laboratory
John Shepherd FRS, University of Southampton
Keith Shine FRS, University of Reading.
Susan Solomon (NAS), Massachusetts Institute of Technology
Kevin Trenberth, National Center for Atmospheric Research
John Walsh, University of Alaska, Fairbanks
Don Wuebbles, University of Illinois

Staff support for the 2020 revision was provided by Richard Walker, Amanda Purcell, Nancy Huddleston, and Michael Hudson. We offer special thanks to Rebecca Lindsey and NOAA Climate.gov for providing data and figure updates.

The following individuals served as reviewers of the 2014 document in accordance with procedures approved by the Royal Society and the National Academy of Sciences:

Richard Alley (NAS), Department of Geosciences, Pennsylvania State University
Alec Broers FRS, Former President of the Royal Academy of Engineering
Harry Elderfield FRS, Department of Earth Sciences, University of Cambridge
Joanna Haigh FRS, Professor of Atmospheric Physics, Imperial College London
Isaac Held (NAS), NOAA Geophysical Fluid Dynamics Laboratory
John Kutzbach (NAS), Center for Climatic Research, University of Wisconsin
Jerry Meehl, Senior Scientist, National Center for Atmospheric Research
John Pendry FRS, Imperial College London
John Pyle FRS, Department of Chemistry, University of Cambridge
Gavin Schmidt, NASA Goddard Space Flight Center
Emily Shuckburgh, British Antarctic Survey
Gabrielle Walker, Journalist
Andrew Watson FRS, University of East Anglia

The Support for the 2014 Edition was provided by NAS Endowment Funds. We offer sincere thanks to the Ralph J. and Carol M. Cicerone Endowment for NAS Missions for supporting the production of this 2020 Edition.

F OR FURTHER READING

For more detailed discussion of the topics addressed in this document (including references to the underlying original research), see:

Intergovernmental Panel on Climate Change (IPCC), 2019: Special Report on the Ocean and Cryosphere in a Changing Climate [ https://www.ipcc.ch/srocc ]
National Academies of Sciences, Engineering, and Medicine (NASEM), 2019: Negative Emissions Technologies and Reliable Sequestration: A Research Agenda [ https://www.nap.edu/catalog/25259 ]
Royal Society, 2018: Greenhouse gas removal [ https://raeng.org.uk/greenhousegasremoval ]
U.S. Global Change Research Program (USGCRP), 2018: Fourth National Climate Assessment Volume II: Impacts, Risks, and Adaptation in the United States [ https://nca2018.globalchange.gov ]
IPCC, 2018: Global Warming of 1.5°C [ https://www.ipcc.ch/sr15 ]
USGCRP, 2017: Fourth National Climate Assessment Volume I: Climate Science Special Reports [ https://science2017.globalchange.gov ]
NASEM, 2016: Attribution of Extreme Weather Events in the Context of Climate Change [ https://www.nap.edu/catalog/21852 ]
IPCC, 2013: Fifth Assessment Report (AR5) Working Group 1. Climate Change 2013: The Physical Science Basis [ https://www.ipcc.ch/report/ar5/wg1 ]
NRC, 2013: Abrupt Impacts of Climate Change: Anticipating Surprises [ https://www.nap.edu/catalog/18373 ]
NRC, 2011: Climate Stabilization Targets: Emissions, Concentrations, and Impacts Over Decades to Millennia [ https://www.nap.edu/catalog/12877 ]
Royal Society 2010: Climate Change: A Summary of the Science [ https://royalsociety.org/topics-policy/publications/2010/climate-change-summary-science ]
NRC, 2010: America’s Climate Choices: Advancing the Science of Climate Change [ https://www.nap.edu/catalog/12782 ]

Much of the original data underlying the scientific findings discussed here are available at:

https://data.ucar.edu/
https://climatedataguide.ucar.edu
https://iridl.ldeo.columbia.edu
https://ess-dive.lbl.gov/
https://www.ncdc.noaa.gov/
https://www.esrl.noaa.gov/gmd/ccgg/trends/
http://scrippsco2.ucsd.edu
http://hahana.soest.hawaii.edu/hot/

was established to advise the United States on scientific and technical issues when President Lincoln signed a Congressional charter in 1863. The National Research Council, the operating arm of the National Academy of Sciences and the National Academy of Engineering, has issued numerous reports on the causes of and potential responses to climate change. Climate change resources from the National Research Council are available at .

is a self-governing Fellowship of many of the world’s most distinguished scientists. Its members are drawn from all areas of science, engineering, and medicine. It is the national academy of science in the UK. The Society’s fundamental purpose, reflected in its founding Charters of the 1660s, is to recognise, promote, and support excellence in science, and to encourage the development and use of science for the benefit of humanity. More information on the Society’s climate change work is available at

Climate change is one of the defining issues of our time. It is now more certain than ever, based on many lines of evidence, that humans are changing Earth's climate. The Royal Society and the US National Academy of Sciences, with their similar missions to promote the use of science to benefit society and to inform critical policy debates, produced the original Climate Change: Evidence and Causes in 2014. It was written and reviewed by a UK-US team of leading climate scientists. This new edition, prepared by the same author team, has been updated with the most recent climate data and scientific analyses, all of which reinforce our understanding of human-caused climate change.

Scientific information is a vital component for society to make informed decisions about how to reduce the magnitude of climate change and how to adapt to its impacts. This booklet serves as a key reference document for decision makers, policy makers, educators, and others seeking authoritative answers about the current state of climate-change science.

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How to cite ChatGPT

Use discount code STYLEBLOG15 for 15% off APA Style print products with free shipping in the United States.

We, the APA Style team, are not robots. We can all pass a CAPTCHA test , and we know our roles in a Turing test . And, like so many nonrobot human beings this year, we’ve spent a fair amount of time reading, learning, and thinking about issues related to large language models, artificial intelligence (AI), AI-generated text, and specifically ChatGPT . We’ve also been gathering opinions and feedback about the use and citation of ChatGPT. Thank you to everyone who has contributed and shared ideas, opinions, research, and feedback.

In this post, I discuss situations where students and researchers use ChatGPT to create text and to facilitate their research, not to write the full text of their paper or manuscript. We know instructors have differing opinions about how or even whether students should use ChatGPT, and we’ll be continuing to collect feedback about instructor and student questions. As always, defer to instructor guidelines when writing student papers. For more about guidelines and policies about student and author use of ChatGPT, see the last section of this post.

Quoting or reproducing the text created by ChatGPT in your paper

If you’ve used ChatGPT or other AI tools in your research, describe how you used the tool in your Method section or in a comparable section of your paper. For literature reviews or other types of essays or response or reaction papers, you might describe how you used the tool in your introduction. In your text, provide the prompt you used and then any portion of the relevant text that was generated in response.

Unfortunately, the results of a ChatGPT “chat” are not retrievable by other readers, and although nonretrievable data or quotations in APA Style papers are usually cited as personal communications , with ChatGPT-generated text there is no person communicating. Quoting ChatGPT’s text from a chat session is therefore more like sharing an algorithm’s output; thus, credit the author of the algorithm with a reference list entry and the corresponding in-text citation.

When prompted with “Is the left brain right brain divide real or a metaphor?” the ChatGPT-generated text indicated that although the two brain hemispheres are somewhat specialized, “the notation that people can be characterized as ‘left-brained’ or ‘right-brained’ is considered to be an oversimplification and a popular myth” (OpenAI, 2023).

OpenAI. (2023). ChatGPT (Mar 14 version) [Large language model]. https://chat.openai.com/chat

You may also put the full text of long responses from ChatGPT in an appendix of your paper or in online supplemental materials, so readers have access to the exact text that was generated. It is particularly important to document the exact text created because ChatGPT will generate a unique response in each chat session, even if given the same prompt. If you create appendices or supplemental materials, remember that each should be called out at least once in the body of your APA Style paper.

When given a follow-up prompt of “What is a more accurate representation?” the ChatGPT-generated text indicated that “different brain regions work together to support various cognitive processes” and “the functional specialization of different regions can change in response to experience and environmental factors” (OpenAI, 2023; see Appendix A for the full transcript).

Creating a reference to ChatGPT or other AI models and software

The in-text citations and references above are adapted from the reference template for software in Section 10.10 of the Publication Manual (American Psychological Association, 2020, Chapter 10). Although here we focus on ChatGPT, because these guidelines are based on the software template, they can be adapted to note the use of other large language models (e.g., Bard), algorithms, and similar software.

The reference and in-text citations for ChatGPT are formatted as follows:

Parenthetical citation: (OpenAI, 2023)
Narrative citation: OpenAI (2023)

Let’s break that reference down and look at the four elements (author, date, title, and source):

Author: The author of the model is OpenAI.

Date: The date is the year of the version you used. Following the template in Section 10.10, you need to include only the year, not the exact date. The version number provides the specific date information a reader might need.

Title: The name of the model is “ChatGPT,” so that serves as the title and is italicized in your reference, as shown in the template. Although OpenAI labels unique iterations (i.e., ChatGPT-3, ChatGPT-4), they are using “ChatGPT” as the general name of the model, with updates identified with version numbers.

The version number is included after the title in parentheses. The format for the version number in ChatGPT references includes the date because that is how OpenAI is labeling the versions. Different large language models or software might use different version numbering; use the version number in the format the author or publisher provides, which may be a numbering system (e.g., Version 2.0) or other methods.

Bracketed text is used in references for additional descriptions when they are needed to help a reader understand what’s being cited. References for a number of common sources, such as journal articles and books, do not include bracketed descriptions, but things outside of the typical peer-reviewed system often do. In the case of a reference for ChatGPT, provide the descriptor “Large language model” in square brackets. OpenAI describes ChatGPT-4 as a “large multimodal model,” so that description may be provided instead if you are using ChatGPT-4. Later versions and software or models from other companies may need different descriptions, based on how the publishers describe the model. The goal of the bracketed text is to briefly describe the kind of model to your reader.

Source: When the publisher name and the author name are the same, do not repeat the publisher name in the source element of the reference, and move directly to the URL. This is the case for ChatGPT. The URL for ChatGPT is https://chat.openai.com/chat . For other models or products for which you may create a reference, use the URL that links as directly as possible to the source (i.e., the page where you can access the model, not the publisher’s homepage).

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How to cite ChatGPT
We, the APA Style team, are not robots. We can all pass a CAPTCHA test, and we know our roles in a Turing test.And, like so many nonrobot human beings this year, we've spent a fair amount of time reading, learning, and thinking about issues related to large language models, artificial intelligence (AI), AI-generated text, and specifically ChatGPT.