Flux continu

Guardian investigation reveals fossil fuel links of IPCC authors, with experts declaring the body’s conflict of interest policy ‘not fit for purpose’

One of the biggest upheavals in a millennium is on its way, strengthened by the climate crisis. We need leaders who make things better not worse

Lethal temperatures ​and wildfires have exposed a widening gulf between voters demanding ​action and politicians unwilling to confront the long-term choices global heating requires

Global energy and materials are essential to the functioning of the economy and have significant implications for macroeconomics and the environment. At the same time, the world is not on track to meet Paris Agreement goals. This paper documents two stylized facts that connect these observations. First, the world economy is characterized by large embedded emissions and materials: different energies and materials are deeply entwined and interdependent. This has historically led to additive – rather than substitution – dynamics in energy and materials on a global scale. Second, historically there has been a strong positive correlation between efficiency in resource use and total resource use at a global scale. We synthesize these observations by introducing the Generalized Jevons Paradox (GJP). We argue that the GJP reflects the direct and indirect energy/material demand effects of long-term energy and material interdependencies, themselves shaped by market and geoeconomic power, trade arrangements, and financi

Les grandes puissances déploient des initiatives de connectivité qui redessinent la carte du monde. La Chine avec ses Nouvelles Routes de la soie, l’Union européenne et son Global Gateway, les États-Unis et le G7 à travers le Build Back Better World ou B3W/PGII… Tous ces projets traduisent une même ambition : organiser, sécuriser et contrôler l’internationalisation de l’économie, plutôt que la subir.

Une sécheresse des sols comme celle que connaît actuellement la Belgique est onze fois plus probable aujourd’hui qu’avant le réchauffement climatique. C’est ce qu’il ressort d’une nouvelle étude du consortium international "World Weather Attribution" (WWA). Explications.

La chaleur extrême, davantage que le manque de précipitations, est en train de devenir le principal facteur de sécheresse sur le continent européen, selon une étude du réseau de scientifiques World Weather Attribution publiée jeudi.

Combien y a-t-il d'habitants dans le monde ? La population mondiale a atteint 8 milliards le 15 novembre 2022 selon les Nations Unies. Compteur de la population mondiale en direct avec fiches de données, graphiques, cartes et données de recensement concernant les chiffres actuels, historiques et futurs de la population mondiale, les estimations, les taux de croissance, les densités et la démographie

Alors que la Chine et les États-Unis se livrent une guerre sans merci sur le terrain de l’intelligence artificielle, le président Xi Jinping a fait une déclaration assez surprenante lors de l’ouverture de la récente World AI Conference (WAIC) à Shanghai. Le dirigeant a proposé de faire en sorte que l’IA devienne un « bien public mondial » via des modèles open-source, une vision contrastant fortement avec celle des Etats-Unis.

Le 4 juin dernier, le World Inequality Lab (WIL) a lancé le « Global Justice Project », un programme destiné à « stimuler la recherche, l’élaboration des politiques et l’engagement citoyen afin de façonner un 21ème siècle plus juste, plus démocratique et plus durable ». Pour l’heure, il prend la forme d’un rapport, A Plan for Equality & Prosperity Within Planetary Boundaries, qui prolonge sept working papers du WIL – près de 970 pages de travail scientifique. L’effort est colossal. Comme le résume l’un des co-auteurs de l’étude, l’économiste Lucas Chancel, spécialiste des inégalités (Insoutenables inégalités, 2021) et de l’énergie (Énergie et inégalités, 2025) : « 24 mois de travail, 45 chercheurs venus du monde entier, combinant les connaissances issues de l’économie, de l’histoire et des sciences du climat ». À l’échelle de l’histoire de la macroéconomie, c’est l’équivalent d’une pyramide.

Three leading climate scientists have combined insights from 10 global climate models and, with the help of artificial intelligence (AI), conclude that regional warming thresholds are likely to be reached faster than previously estimated.

Pour les scientifiques du World Weather Attribution, qui analysent le rôle du changement climatique dans les phénomènes météorologiques extrêmes, la vague de chaleur actuelle est directement liée au réchauffement causé par les émissions humaines de gaz à effet de serre. Une nouvelle alerte, qui confirme que ces épisodes extrêmes sont amenés à se multiplier et à s’intensifier avec le dérèglement climatique.

Closed-door talks over the World Bank’s climate agenda have stalled, as the US pushes to scrap green targets and expand support for fossil fuels

La vague de chaleur qui accable l'Europe depuis plusieurs jours aurait été "quasiment impossible" il y a 50 ans et le changement climatique en est "incontestablement" la cause, affirme le World Weather Attribution (WWA) dans une analyse "rapide" publiée vendredi.

Misschien is het probleem niet dat toekomstscenario's zoals die van het Global Justice Report onhaalbaar zijn, maar dat ze net iets te veel vragen stellen over onze huidige realiteit.

The Ocean is essential to life on Earth, regulates the climate, supports rich biodiversity, sustains livelihoods, and inspires cultures and societies. However, unregulated human impacts are putting the Ocean and its ability to contribute to humanity at risk. The Starfish Barometer is a new initiative launched on World Ocean Day (8 June 2025) to provide a concise, science-based annual overview of the multiple dimensions of the Ocean through the lens of its interdependence with humanity. Each year, the Starfish Barometer will present a carefully curated selection of Ocean-related developments, chosen for their global significance and grounded in the most up-to-date scientific evidence, intended for a broad non-specialist audience. Rather than offering an exhaustive review, it will spotlight key aspects, robust, evidence-based, and reflective of major developments of the year. The Starfish Barometer emphasizes the two-way relationship between humanity and the Ocean: we impact its future, and it shapes ours. Its

L’humanité peut améliorer les niveaux de vie, réduire les inégalités et maintenir le réchauffement climatique en dessous d’une hausse de 2 °C, selon une vision ambitieuse de la survie de la planète rapportée la semaine dernière par The Guardian. À une époque marquée par l’angoisse écologique, c’est une affirmation remarquablement optimiste. Cet optimisme provient du Global Justice Report, élaboré par le World Inequality Lab de Thomas Piketty. […] Ce rapport va à contre-courant de l’époque actuelle. La démagogie anti-immigration, le retour en grâce des combustibles fossiles, les attaques contre le multilatéralisme et la captation du pouvoir par les milliardaires s’opposent tous à la capacité redistributive de l’État que le rapport juge nécessaire. Pourtant, l’équipe du professeur Piketty affirme que la décarbonation, la « sobriété » et l’égalité peuvent permettre à la majorité de mener une vie agréable.

The Global Justice Project attempts to set out a new vision for global progress in the 21st century: grounding human development and equality in planetary habitability. It explores the conditions under which the world could move toward this horizon and traces an economically and ecologically consistent transition path from 2026 to 2100.

The Global Justice Project is a collective research initiative developed by the World Inequality Lab. Combining comparative historical data series from the World Inequality Database with global input-output tables, environmental accounts, labour force surveys and other sources, the project explores what a just distribution of socio-economic and environmental resources could look like at the global level from 2025 to 2100 – both between and within countries – in a way that is compatible with planetary boundaries. The project partly builds on the analysis and proposals set out in Thomas Piketty’s Brief History of Equality, extending them into a broader and more comprehensive global framework. The Global Justice Project is now available to explore on a dedicated website, that includes an interactive tool to explore the distributional pathways and climate scenarios behind the report.

- Artificial intelligence could pose a "more urgent" threat to humanity than climate change, AI pioneer Geoffrey Hinton told Reuters in an interview on Friday. Geoffrey Hinton, widely known as one of the "godfathers of AI", recently announced he had quit Alphabet, opens new tab after a decade at the firm, saying he wanted to speak out on the risks of the technology without it affecting his former employer.

Terms such as El Nino, La Nina and ENSO are thrown around a lot in relation to Australian weather, but what do they actually mean for us and the rest of the world?

Global effort needed to limit effects of pollution, industrial fishing and climate crisis, World Ocean Assessment says

World is approaching point where no one can shut down a rogue AI, says director of body behind research

Y a-t-il un lien entre le plastique et les ouragans Sandy et Katrina, aux États-Unis, la fonte des glaciers dans l’Antarctique, les vagues de chaleur pendant l’été, l’érosion du littoral en Australie — et quantité d’autres catastrophes naturelles qui s’abattent sur nous avec une fréquence accrue ? Nous incriminons le changement climatique. Mais l’impact des déchets plastiques et de l’industrie du plastique sur le changement climatique est souvent méconnu ou, pire, pris à la légère.

A climate monster is growing right now in the Pacific Ocean, perhaps the most fearsome El Niño since before scientists even began modeling them. They now know the pattern quite well: A marine heat-wave in the Pacific Ocean scrambles global weather and produces in some places more intense droughts and in others more intense rainfall and flooding; disruptions to hurricane patterns and monsoon seasons, which can cause widespread crop failures; and much more punishing heat.

Les systèmes d’intelligence artificielle générative, qui parlent si bien, ne comprennent pas encore le monde. De nouvelles méthodes physiques ou statistiques comme les world models, ou « modèles de monde », permettraient de les doter d’une forme de sens commun, qui leur servirait à mieux simuler la réalité et de mieux interagir avec elle.

How much CO₂ does the world emit? Which countries emit the most?

The European Center for Medium Range Weather Forecasts (ECMWF) earlier this year issued a forecast of a strong (“Super”) El Nino to begin later this year and peak in early 2027, as we have discussed in two earlier posts.3,4 El Ninos are important because of the large effects that they have on global weather, even though those effects are not always consistent from one El Nino to another. El Ninos have even greater effect in combination with ongoing global warming, e.g., Radfar et al.5 find that the combination of an El Nino with increasingly prevalent marine heat waves results in tropical cyclones consistently producing higher maximum wind speeds, storm surges, and precipitation rates, and Liu et al.6 describe evidence of El Ninos strengthened control over global climate anomalies in a warmer world

Climate regime shifts (CRSs), characterized by abrupt and persistent transitions between alternative stable states in the climate system, pose serious threats to ecosystems and human well-being. Understanding the potential drivers of CRSs is crucial, particularly in a warming world where CRSs are becoming more frequent.

Oil has empowered capitalism, and some of the world’s most exploitative regimes. Move away from it and we can solve some of the key issues we face

What is currently happening in Brussels under the guise of regulatory simplification is being presented as something technical and logical. Less regulatory pressure, more competitiveness. A series of so-called omnibus bills are intended to streamline legislation. Reporting obligations are being limited and reassessments of raw materials postponed. It sounds like administrative efficiency. In Washington, things are moving even faster: Trump is dismantling the basis for climate laws while the world continues to warm up. The framing is the same: rules slow down businesses, and a slowed-down business community makes us poor. But that reasoning assumes something that is not true: that everyone wants the same thing from the market.

The world seems headed into another El Nino, just 3 years after the last one. Such quick return normally would imply, at most, an El Nino of moderate strength, but we suggest that even a moderately strong El Nino may yield record global temperature already in 2026 and still greater temperature in 2027. The extreme warming will be a result mainly of high climate sensitivity and a recent increase of the net global climate forcing, not the result of an exceptional El Nino, per se. We find that the principal drive for global warming acceleration began in about 2015, which implies that 2°C global warming is likely to be reached in the 2030s, not at midcentury.

With warming set to pass the critical 1.5-degree limit, scientists are warning that the world is on course to trigger tipping points that would lead to cascading consequences — from the melting of ice sheets to the death of the Amazon rainforest — that could not be reversed.

Doyne Farmer says a super-simulator of the global economy would accelerate the transition to a green, clean world

The world seems headed into another El Nino, just 3 years after the last one. Such quick return normally would imply, at most, an El Nino of moderate strength, but we suggest that even a moderately strong El Nino may yield record global temperature already in 2026 and still greater temperature in 2027. The extreme warming will be a result mainly of high climate sensitivity and a recent increase of the net global climate forcing, not the result of an exceptional El Nino, per se. We find that the principal drive for global warming acceleration began in about 2015, which implies that 2°C global warming is likely to be reached in the 2030s, not at midcentury.

The decline in the health of nature around the world poses a threat to the UK's security and prosperity, an intelligence committee has concluded in a long-awaited report. The document warns of "cascading risks" from the degradation of some of the planet's most important ecosystems, including conflict, migration and increased competition for resources.

HAMBOURG — Depuis quelque temps déjà, les climatologues débattent d’une hypothèse inquiétante : le réchauffement climatique est-il en train de s’accélérer ? La Société allemande de physique et la Société météorologique allemande mettent désormais en garde contre ce phénomène dans une déclaration commune. L’hebdomadaire allemand Die Zeit s’est entretenu à ce sujet avec Klaus Richter, président de la Société allemande de physique, et Frank Böttcher, président de la Société météorologique allemande.

Flagship report calls for fundamental reset of global water agenda as irreversible damage pushes many basins beyond recovery

Satellite analysis warns that widespread land subsidence threatens 1.6 billion people by 2040, with 86% of the at-risk population concentrated in Asia

Like living beyond your financial means, using more water than nature can replenish can have catastrophic results.