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Climate Q
2025
We are an international group of researchers and practitioners interested in the emerging fields of post-growth and ecological macroeconomics. Our aim is to advance economic theory, methodology and policy in order to adequately address some of the biggest challenges of our time: climate change, rising inequality, and financial instability.
We make meaningful climate action faster and easier by mobilizing the global tech community to track greenhouse gas (GHG) emissions with unprecedented detail.
How does one talk about climate change when armed conflicts are spiralling out of control?
Conservative leader Kemi Badenoch has described her plan to “maximise extraction” of the UK’s oil and gas from the North Sea as a “common sense” energy policy. Politicians are using language like this increasingly often – calling themselves “pragmatic” on climate change and invoking “common sense”. It sounds reasonable, reassuring, and grownup – the opposite of “hysterical” campaigners or “unrealistic” targets.
Avant l’été, un site gouvernemental américain d’information sur le climat a été invisibilisé par l’administration Trump. Depuis, d’anciens employés fédéraux travaillent bénévolement pour ressusciter son contenu.
The Atlantic meridional overturning circulation (AMOC) is an important tipping element in the climate system. There is a large uncertainty whether the AMOC will start to collapse during the century under future climate change, as this requires long climate model simulations which are not always available. Here, we analyze targeted climate model simulations done with the Community Earth System Model (CESM) with the aim to develop a physics-based indicator for the onset of an AMOC tipping event. This indicator is diagnosed from the surface buoyancy fluxes over the North Atlantic Ocean and is performing successfully under quasi-equilibrium freshwater forcing, freshwater pulse forcing, climate change scenarios, and for different climate models. An analysis consisting of 25 different climate models shows that the AMOC could begin to collapse by 2063 (from 2026 to 2095, to percentiles) under an intermediate emission scenario (SSP2-4.5), or by 2055 (from 2023 to 2076, to percentiles) under a high-end emission scenar
This article examines the technocentric bias that characterizes climate mitigation literature, focusing on the reports of the IPCC's Working Group III. This bias stems from structural features of the scientific field that prioritizes innovation, leading to the overrepresentation of technological solutions in climate research. Funding mechanisms further reinforce this tendency by incentivizing collaboration with industrial R&D, creating a self-reinforcing loop in which scientific authority and industrial interests converge. The IPCC's institutional positioning—as a policy-relevant yet politically cautious body—amplifies this dynamic by favoring allegedly “cost-effective” technological pathways that lack practical feasibility.
Passing 1.5ºC is now inevitable. Overshoot scenarios tell us that we can relatively safely pass this level but then bring temperatures back down again, but how realistic are they, and how safe?
Climate sensitivity is substantially higher than IPCC’s best estimate (3°C for doubled CO2), a conclusion we reach with greater than 99 percent confidence. We also show that global climate forcing by aerosols became stronger (increasingly negative) during 1970-2005, unlike IPCC’s best estimate of aerosol forcing. High confidence in these conclusions is based on a broad analysis approach. IPCC’s underestimates of climate sensitivity and aerosol cooling follow from their disproportionate emphasis on global climate modeling, an approach that will not yield timely, reliable, policy advice.
Farming seaweed, changing ocean chemistry, breeding corals and restoring mangroves could help fight climate change – if assessed and managed responsibly.
The constant deluge of bad news about rising global temperatures and their impacts can make it feel like the world is ending. Is it?
C’est une tendance qui ne faiblit pas sur les réseaux sociaux. Face à la crise écologique, des centaines de jeunes témoignent de leur pessimisme quant à notre capacité à redresser la barre : on les appelle les "climate doomers". Résultat d’une éco-anxiété grandissante, ce phénomène participe à freiner l’action climatique.
For decades, the surface of the polar Southern Ocean (south of 50°S) has been freshening—an expected response to a warming climate. This freshening enhanced upper-ocean stratification, reducing the upward transport of subsurface heat and possibly contributing to sea ice expansion. It also limited the formation of open-ocean polynyas. Using satellite observations, we reveal a marked increase in surface salinity across the circumpolar Southern Ocean since 2015. This shift has weakened upper-ocean stratification, coinciding with a dramatic decline in Antarctic sea ice coverage. Additionally, rising salinity facilitated the reemergence of the Maud Rise polynya in the Weddell Sea, a phenomenon last observed in the mid-1970s.
EN
Earth is trapping much more heat than climate models forecast – and the rate has doubled in 20 years
- collectif
Real world measurements of how much extra heat the Earth is trapping are well beyond most climate models. That’s a real problem.
Les financements aux industries du pétrole et du gaz repartent de plus belle. Le rapport Banking on climate chaos, signé par huit ONG, estime à près de 900 milliards de dollars les financements octroyés en 2024 par 65 banques aux industriels du secteur, en augmentation de 23%. Le backlash contre la finance durable n’est pas étranger à ce nouvel appétit de la finance pour les hydrocarbures.
Mark Lynas has spent decades pushing for action on climate emissions but now says nuclear war is even greater threat Climate breakdown is usually held up as the biggest, most urgent threat humans pose to the future of the planet today. But what if there was another, greater, human-made threat that could snuff out not only human civilisation, but practically the entire biosphere, in the blink of an eye?
Despite mounting evidence of global warming’s costs, the Trump administration has made multiple moves to avoid tracking climate-related economics.
On 21 April 2019, I was on Waterloo Bridge in London with my younger siblings. Around us were planters full of flowers where there were once cars, and people singing. This was the spring iteration of Extinction Rebellion, when four bridges in London were held by protesters. My siblings, then 14, had been going out on school strike inspired by Greta Thunberg, and wanted to see her speak.
Societies increasingly rely on scientists to guide decisions in times of uncertainty, from pandemic outbreaks to the rise of artificial intelligence. Addressing climate change is no different. For governments wanting to introduce ambitious climate policies, public trust in climate scientists is pivotal, because it can determine whether voters support or resist those efforts.
The nation’s top banks are quietly advising their clients on how to build a financial life raft — or perhaps life yacht — from the wreckage of runaway climate change. Make no mistake: The forecasts coming from Wall Street’s leading financial institutions are bleak. But they also point their clients to potential profit-making opportunities from the havoc spreading across the planet, writes Corbin Hiar.
Climate change is driving rising global temperatures, ecological degradation, and widespread human suffering. Yet, as a collective, humanity has failed to implement sufficient changes to mitigate these threats. This paper introduces the concept of “global narcissism” as a speculative lens to analyze the psychological barriers to climate action. By examining different levels of narcissism and their manifestations in human responses to climate change, this framework highlights key obstacles to meaningful action. While humanity is diverse, and lived experiences vary greatly, this perspective offers a way to discuss patterns of response and resistance. A central challenge lies in humanity’s difficulty in recognizing its symbiotic relationship with the non-human world. Through the metaphor of “global narcissism” this paper explores how humanity’s response to ecological crisis mirrors narcissistic defense mechanisms and suggests a collapse is taking place. This framework provides insights into how psychological int
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Study Finds Synergistic Convergence of Global Warming, Pesticide Toxicity, and Antibiotic Resistance
- Beyond Pesticides
Springtails illustrate in new research how global warning and antibiotic resistance creates synergistic effects: warming increases pesticide toxicity, triggering antibiotic resistance which spreads through horizontal gene transfer and predation.
A superpower in the fight against global heating is hiding in plain sight. It turns out that the overwhelming majority of people in the world – between 80% and 89%, according to a growing number of peer-reviewed scientific studies – want their governments to take stronger climate action.
Morgan Stanley, JPMorgan and an international banking group have quietly concluded that climate change will likely exceed the Paris Agreement’s 2 degree goal.Top Wall Street institutions are preparing for a severe future of global warming that blows past the temperature limits agreed to by more than 190 nations a decade ago, industry documents show.
Antarctica's remote and mysterious current has a profound influence on the climate, food systems and Antarctic ecosystems. Can we stop it weakening by 2050?
The Antarctic Circumpolar Current (ACC) is the world's strongest ocean current and plays a disproportionate role in the climate system due to its role as a conduit for major ocean basins. This current system is linked to the ocean's vertical overturning circulation, and is thus pivotal to the uptake of heat and CO2 in the ocean. The strength of the ACC has varied substantially across warm and cold climates in Earth's past, but the exact dynamical drivers of this change remain elusive. This is in part because ocean models have historically been unable to adequately resolve the small-scale processes that control current strength. Here, we assess a global ocean model simulation which resolves such processes to diagnose the impact of changing thermal, haline and wind conditions on the strength of the ACC. Our results show that, by 2050, the strength of the ACC declines by ∼20% for a high-emissions scenario. This decline is driven by meltwater from ice shelves around Antarctica, which is exported to lower latit
The Atlantic Meridional Overturning Circulation (AMOC), vital for northwards heat transport in the Atlantic Ocean, is projected to weaken owing to global warming1, with significant global climate impacts2. However, the extent of AMOC weakening is uncertain with wide variation a …
One of the world’s most climate-ambitious governments is about to fall, replaced by a likely chancellor who says green policy went too far.
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‘Net zero hero’ myth unfairly shifts burden of solving climate crisis on to individuals, study finds
- Guardian staff reporter
Shifting responsibility to consumers minimises the role of energy industry and policymakers, University of Sydney research suggests
On the topic of climate and carbon reduction commitments, corporations like Google, Microsoft, and Shell once positioned themselves as leaders in sustainability, setting ambitious net-zero goals to align with global environmental efforts. However, the rapid rise of energy-hungry artificial intelligence is forcing these companies to reconsider—or even abandon—these commitments as they struggle to balance environmental responsibility and making money from new tech.
2024
Sea ice extent for the Arctic overall as of mid-December is at the lowest for this point in the season in the entire satellite era record (since autumn 1978) Whether this is a transient low extent or not, expanded open water now, with the winter solstice upon us, means that there’s less time for ice, once it forms, to thicken up before the spring melt commences in a few months.
As the world’s largest gathering of Earth and space scientists swarmed a Washington venue last week, the packed halls have been permeated by an air of anxiety and even dread over a new Donald Trump presidency that might worsen what has been a bruising few years for science.
The climate and ecological crisis poses an unprecedented challenge, with scientists playing a critical role in how society understands and responds. This study examined how 27 environmentally concerned scientists from 11 countries construct the future in the context of climate change, applying a critical discursive psychology analysis. The degree to which the future is constructed as predetermined or transformable impacts both the urgency and scope of proposed actions. ...
Trump could reverse the nation’s progress on climate change, but rolling back the Biden administration’s significant climate successes could be a low, slow and difficult process...
Global warming has already caused the Arctic to release more climate-warming methane—but exactly how much will depend closely on the actions we take to halt climate change.
A Trump presidency can delay, but not stop, the global transition to renewable energy, but it may more effectively stymie progress than during his first term.
A new declaration aims to make the southernmost continent an autonomous legal entity, akin to a nation-state, with inherent rights to participate in decision making that affects it.
We are on the brink of an irreversible climate disaster. This is a global emergency beyond any doubt. Much of the very fabric of life on Earth is imperiled. We are stepping into a critical and unpredictable new phase of the climate crisis. For many years, scientists, including a group of more than 15,000, have sounded the alarm about the impending dangers of climate change driven by increasing greenhouse gas emissions and ecosystem change (Ripple et al. 2020).
Record emissions, temperatures and population mean more scientists are looking into possibility of societal collapse, report says
To analyze the climate change experienced in Spain between 1971 and 2022 and to estimate the future climate for 2050.
The EU is being sued for failing to set ambitious climate targets in sectors that contribute more than half of the bloc’s total greenhouse gas emissions.
Misinformation by fossil fuel companies is slowing down the energy transition and global efforts to tackle climate change, warns the UN.
Adapt2climate est un site développé par la Commission Nationale Climat dans le cadre de la mise en œuvre du Plan National Adaptation. Ce portail national vise à mettre à disposition les informations disponibles concernant les incidences des changements climatiques, les évaluations de vulnérabilité et l’adaptation en Belgique.
A new study suggests that the Gulf Stream was stronger during the last ice age due to more powerful winds, indicating that future changes in wind patterns could weaken the Gulf Stream, affecting European climate and North American sea levels. This research enhances our understanding of the Atlantic Meridional Overturning Circulation (AMOC) and its vulnerability to climate change.
In Virginia, a small conservation group is leading the fight against the powerful and secretive data center industry.
Since the Paris Agreement in 2016, the world’s 60 largest private banks financed fossil fuels with USD $6.9 trillion. Nearly half – $3.3 trillion – went towards fossil fuel expansion. In 2023, banks financed $705 billion in fossil fuel financing with $347 billion going to fossil fuel expansion alone.
Decarbonization efforts and sustainability transformations represent highly contested socio-political projects. Yet, they often encounter various forms of depoliticization. This article illuminates how a grand socio-ecological challenge like the energy transition gets depoliticized by an unusual suspect, namely Germany's Green Party. Based on a qualitative content analysis of Green Party programs, party conventions, and additional documents published between 1980 and 2021, this article traces how the Green Party has depoliticized the energy transition over time, emphasizing a shift from radical societal change to ecological modernization. The changing stance of the German Greens on the country's energy transition reflects more profound changes of a future society the party collectively envisions through their energy and climate change agenda. These changes result from a struggle between moderates advocating incremental political reforms and radicals aiming for more fundamental and systemic societal change.
Et si lutter efficacement contre le réchauffement climatique devrait passer par l'utilisation d'une IA experte dans le domaine ?
Near-real time updates of key global climate variables from the the Copernicus Climate Change Service (C3S)
Ce rapport analyse les obstacles et leviers à la lumière de projets inspirants en matière d'adaptation des villes à l'élévation du niveau de la mer dans le Pacifique.
On connaissait l’avion propulsé à l’énergie solaire : Solar Impulse. Voici à présent le projet Climate Impulse, qui pour objectif de développer un avion qui volera à l’hydrogène. L’explorateur suisse Bertrand Piccard et Ilham Kadri, ex-PDG du groupe belge Solvay et à présent directrice générale de Syensqo (société issue de la scission du groupe chimique Solvay) étaient les invités de la Première ce matin pour nous parler de ce nouveau projet qui mêle technologie et climat.
This report written by the World Economic Forum, in collaboration with Oliver Wyman, provides an in-depth economic analysis of how climate change will reshape health landscapes over the next two decades. It highlights increased risks from new pathogens, pollution and extreme weather events and shows how these will exacerbate current health inequities, disproportionately impacting the most vulnerable populations.
A case in point: When Ecuador placed a windfall tax on foreign oil operations, French and U.S. companies filed claims—and were awarded more than $800 million.
Il y a de quoi devenir fou, ballotté entre les injonctions consuméristes de l’économie de marché et les consignes de frugalité qu’impose la crise climatique. Prenez, cette semaine, la grand-messe du CES, le Consumer Electronics Show de Las Vegas, immense débauche technologique à destination du grand public et rendez-vous incontournable des prosélytes de l’innovation.
Last year I was fortunate enough to be joined by four remarkable women in the British environmental movement. We were speaking at a Deep Adaptation conference in Glastonbury. The way the discussion…
2023
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A new paper published in the journal Science has warned that melting areas in the Arctic have become 'frontlines for resource extraction', describing it as a 'modern day gold rush'.
La démission climatique, ou "climate quitting" consiste à démissionner pour dénoncer le manque d'efforts de son entreprise en matière de transition écologique. Un phénomène de plus en plus commun.
Dans ce document explicatif court et facile à lire, nous analysons les effets du changement climatique sur la paix et la sécurité.
Le fonctionnement de l’économie mondiale repose encore massivement sur les combustibles fossiles, qui nous tuent littéralement. Il est non seulement impératif de refuser tout nouvel investissement dans l’infrastructure fossile, mais il faut également fermer et déconstruire l’infrastructure fossile existante.
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Le 4 septembre n’est pas uniquement la date de la rentrée scolaire en France. Ce lundi marquera aussi l’ouverture de l’Africa Climate Summit, la toute première conférence consacrée aux questions climatiques en Afrique, qui se tiendra pendant trois jours à Nairobi, au Kenya. Plus d’une vingtaine de chefs d’État ou de gouvernement africains ainsi que 20 000 membres de délégations du monde entier – y compris le secrétaire général des Nations unies, António Guterres – ont confirmé leur venue.
Antarctica’s sea ice levels are plummeting as extreme weather events happen faster than scientists predicted
More than a century of research shows that burning fossil fuels warms the climate – that’s exactly why granting new North Sea oil and gas licenses is a bad idea.
According to the latest update to the NBB’s Climate Dashboard, it appears unlikely that the world will be able to limit global warming to 1.5 °C.
Energy firms have made record profits by increasing production of oil and gas, far from their promises of rolling back emissions
De Mozambikaanse aluminiumindustrie, de grootste industrie van het land, beweert dat haar aluminium klimaatvriendelijk is dankzij schone energie. Zo zou Mozambique onder de dreigende Europese CO2-grensbelasting uit kunnen komen. Maar onderzoekers betwijfelen de beweringen.
Without more legally binding and well-planned net-zero policies, the world is highly likely to miss key climate targets.
Ice-free summers inevitable even with sharp emissions cuts and likely to result in more extreme heatwaves and floods
L’ONG Climate Whistleblowers («lanceurs d’alerte sur le climat» en français) a été lancée ce lundi à l’occasion de la journée internationale de l’environnement.
Terrestrial ecosystems have taken up about 32% of the total anthropogenic CO2 emissions in the past six decades1. Large uncertainties in terrestrial carbon–climate feedbacks, however, make it difficult to predict how the land carbon sink will respond to future climate change2. Interannual variations in the atmospheric CO2 growth rate (CGR) are dominated by land–atmosphere carbon fluxes in the tropics, providing an opportunity to explore land carbon–climate interactions3–6. It is thought that variations in CGR are largely controlled by temperature7–10 but there is also evidence for a tight coupling between water availability and CGR11. Here, we use a record of global atmospheric CO2, terrestrial water storage and precipitation data to investigate changes in the interannual relationship between tropical land climate conditions and CGR under a changing climate. We find that the interannual relationship between tropical water availability and CGR became increasingly negative during 1989–2018 compared to 1960–1989
Vanuatu is asking two questions to the ICJ: what are the legal obligations of states in regard to climate justice, and what are the legal consequences for states that do not meet these obligations.
Higher rates slow the renewable energy transition and shield oil and gas producers from competition by low-carbon producers
Andreas Malm says he has no hope in ‘dominant classes’, and urges more radical approach to climate activism.
Informer le grand public sur le changement climatique en quelques clics, voilà l’ambition portée par Climate Q&A. La crise climatique peut-elle être enrayée ? Quel est le coût de l’inaction ? Qu'est-ce que le jet stream ? Lancé au début du mois d’avril, ce chatbot gratuit et open source s’appuie sur une quinzaine de rapports scientifiques pour répondre de manière fiable et sourcée à toutes les interrogations des utilisateurs.
Nouveau "TALK" sur LIMIT avec Adélaïde Charlier, étudiante à la VUB & U-GENT en sciences politiques et sciences sociales. Elle est devenue célèbre en tant que co-fondatrice et porte-parole de Youth for Climate Belgium, un mouvement de jeunes qui a organisé des marches pour le climat dans de nombreuses villes belges. Devenue le visage des marches pour le climat en Belgique, nous discutons du monde de l'activisme, ses débuts, ses combats et sa vision de l'avenir dans un monde où les mensonges, le greenwashing et la désinformation s'organisent pour conserver le business as usual.
La nouvelle IA, développée par une société française, a été conçue pour répondre à toutes les questions sur le climat en se basant sur les rapports du Groupe d’experts intergouvernemental sur l’évolution du climat.
Une société française a créé un nouvel outil à base d’IA pour les questions environnementales. ChatGPT est de la partie mais les sources de données proviennent notamment du GIEC.
GiecPT. Ekimetrics, un cabinet spécialisé en intelligence artificielle, vient de développer Climate Q&A, le ChatGPT du climat. Encore en phase de test, l’outil permet d’interroger facilement les rapports scientifiques les plus importants, dont ceux du Giec.
Ask climate-related questions to the IPCC reports