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Le Calantha, un pesticide génétique ARNi aux effets encore mal connus, vient d’obtenir un passe droit inquiétant : une dérogation octroyée par la Belgique, lui permettant d’être utilisé pendant quatre mois directement sur les cultures de pomme de terres. Le pesticide sera disponible dès le 1er mai dans le pays, alors que sa substance active n'est pas autorisée au niveau européen, faute d'évaluation des risques complète.

De l’outil d’assistance développé en interne aux prévisions d’emplois « à risques », les entreprises françaises tentent d’anticiper les bouleversements que va engendrer l’arrivée de l’intelligence artificielle dans leur organisation.

Paul R. Ehrlich will be remembered as a scientist whose books about population and threats to the environment shaped the idea of limited growth in the modern era.

The Gulf Stream is part of the Atlantic Meridional Overturning Circulation (AMOC). The AMOC is a tipping element and may collapse under changing forcing. However, the role of the Gulf Stream in such a tipping event is unknown. Here, we investigate the link between the AMOC and Gulf Stream using a high-resolution (0. 1°) stand-alone ocean simulation, in which the AMOC collapses under a slowly-increasing freshwater forcing. AMOC weakening gradually shifts the Gulf Stream near Cape Hatteras northward, followed by an abrupt northward displacement of 219 km within 2 years. This rapid shift occurs a few decades before the simulated AMOC collapse. Satellite altimetry shows a significant (1993–2024, p < 0.05) northward Gulf Stream trend near Cape Hatteras, which is also confirmed in subsurface temperature observations (1965–2024, p < 0.01). These findings provide indirect evidence for present-day AMOC weakening and demonstrate that abrupt Gulf Stream shifts can serve as early warning indicator for AMOC tipping.

La Coordination rurale se revendique apolitique, sur le papier seulement. Dans les faits, plusieurs cadres du syndicat agricole sont proches de l’extrême droite et d’autres nourrissent leur radicalité sur les réseaux sociaux. Focus sur quatre d’entre eux.

Le "tout tout de suite" est la nouvelle norme qui régit nos comportements. Mais la riposte s'organise.

The growth rate of greenhouse gas (GHG) climate forcing increased rapidly in the last 15 years to about 0.5 W/m2 per decade, as shown by the “colorful chart” for GHG climate forcing that we have been publishing for 25 years (Fig. 1).[1] The chart is not in IPCC reports, perhaps because it reveals inconvenient facts. Although growth of GHG climate forcing declined rapidly after the 1987 Montreal Protocol, other opportunities to decrease climate forcing were missed. If policymakers do not appreciate the significance of present data on changing climate forcings, we scientists must share the blame.

Launched at the COP30 Belém Climate Summit, the Global Status of Multi-Hazard Early Warning Systems 2025 report provides a snapshot of progress in the implementation of the UN's flagship Early Warnings for All (EW4All) initiative, which aims to protect every person on Earth with an early warning system by 2027. The report reveals measurable progress, with 119 countries, or 60% of all countries, now reporting the existence of a Multi-Hazard Early Warning System. This is a 113% increase over the past 10 years. However, coverage gaps persist, especially among small island developing States, as only 43% of them reported having systems in place.

We propose a new paradigm, as toxicology currently lacks the proper perspective. From the 1950s to the 1970s, at least one-third of all toxicological testing in the United States, including for chemicals and drugs, was misleading scientists, and this worldwide issue persists today. Moreover, petroleum-based waste and heavy metals have been discovered in pesticide and plasticizer formulations. These contaminations have now reached all forms of life. Widespread exposure to chemical mixtures promotes health and environmental risks. We discovered that pesticides have never undergone long-term testing on mammals in their full commercial formulations by regulatory authorities or the pesticide industry; instead, only their declared active ingredients have been assessed, contrary to environmental law recommendations. The ingredients of these formulations are not fully disclosed, yet the formulations are in general at least 1000 times more toxic at low environmentally relevant doses than the active ingredients alone u

German scientists warn global warming is accelerating faster than expected, raising the risk of a 3 °C rise by 2050 and forcing Europe to confront unthinkable adaptation plans.

Baisse des exportations, interrogation sur les chaînes d’approvisionnement… les secteurs industriels subissent les taxes commerciales américaines, avec, pour beaucoup d’entre eux, la crainte de nouveaux chocs.

EU officials warn climate breakdown and wildlife loss ‘are ruining ecosystems that underpin the economy’ […] The European way of life is being jeopardised by environmental degradation, a report has found, with EU officials warning against weakening green rules. The continent has made “important progress” in cutting planet-heating pollution, according to the European Environment Agency, but the death of wildlife and breakdown of the climate are ruining ecosystems that underpin the economy.

Alors que les incidents climatiques extrêmes occupent l'actualité, les prises de position publiques minimisant l'impact des activités humaines sur le réchauffement climatique se répandent.

Forever chemicals have polluted the water supply of 60,000 people, threatening human health, wildlife and the wider ecosystem. But activists say this is just the tip of the Pfas iceberg

Fifteen years ago, smack in the middle of Barack Obama's first term, amid the rapid rise of social media and a slow recovery from the Great Recession, a professor at the University of Connecticut issued a stark warning: the United States was heading into a decade of growing political instability.

There’s frustration among researchers that falling pH levels in seas around the globe are not being taken seriously enough, and that until the buildup of CO2 is addressed, the consequences for marine life will be devastating

A new study uncovers Earth’s deep temperature history and shows just how tightly carbon dioxide has always controlled the climate

Le 24 mars marque la Journée mondiale de lutte contre la tuberculose, un moment clé pour rappeler une réalité brutale : alors qu'il s'agit d'une maladie qu'on peut prévenir et guérir, elle reste la plus meurtrière des infections dans le monde. [...] Et pourtant, alors que nous avons les moyens de lutter contre la tuberculose, les réductions de financements de la coopération internationale dans le monde et en Belgique menacent directement notre capacité à diminuer la mortalité et freiner la propagation de la maladie.

Je ne sais pas vous, mais moi j'ai été gagné par un profond malaise durant cette période de grande frénésie mercantiliste qu'est le salon de l'auto sur fond de crise climatique. Nous savons aujourd'hui que nous ne nous en sortirons pas sans modérer notre consommation. Nous savons que nos petits-enfants auront à souffrir de notre inaction car leur qualité de vie sera fortement détériorée.

Après deux siècles de libre échange et d’ouverture des systèmes agro-alimentaires, la notion de souveraineté alimentaire revient en force dans le débat public. Illustration sur l’île de La Réunion.

Le Premier ministre, Michel Barnier, a annoncé que les travaux de planification dans le domaine de l'énergie et du climat "vont reprendre immédiatement" sur la base des travaux déjà effectués, mardi dans sa déclaration de politique générale devant l'Assemblée nationale.Cela se fera "avec les outils dont nous disposons: la Stratégie française énergie-climat, le troisième plan national d'adaptation au changement climatique, la nouvelle programmation pluriannuelle de l'énergie", a-t-il déclaré.

Le bémol marqué par le Premier ministre, Michel Barnier, sur l'éolien dans sa déclaration de politique générale devant l'Assemblée nationale est "clairement le marqueur" de la "tutelle" du Rassemblement national (RN) sur son gouvernement, a estimé mardi France renouvelables."L'assertion sur l'éolien, c'est clairement le marqueur, un gage donné à la tutelle du Rassemblement national sur ce gouvernement", a déclaré Mattias Vandenbulcke, le directeur de la stratégie de l'association professionnelle des énergies renouvelables.

Et pourtant, l’habitabilité de notre planète en dépend. Le 6e rapport du GIEC est clair sur ce point : “Une politique climatique efficace doit s’appuyer sur la sobriété et l’équité”.

Pour la première fois, les scientifiques ont utilisé le concept de pièges évolutifs sur les sociétés humaines dans leur ensemble. Ils constatent que l’humanité risque de se retrouver coincée dans 14 impasses évolutives, allant des factors de bascule climatiques mondiaux à une intelligence artificielle mal alignée, en passant par la pollution chimique et l’accélération des maladies infectieuses.

When Rishi Sunak granted 27 new North Sea licences this week, he wasn’t thinking about the survival of the living world, says Guardian columnist George Monbiot

the starkest warning yet that human activity is pushing Earth into a climate crisis that could threaten the lives of up to 6 billion people this century, stating candidly: “We are afraid of the uncharted territory that we have now entered.” Writing in the journal Biosciences, the coalition of 12 researchers, spanning North America, Europe and Asia, state in unusually stark language: “As scientists, we are increasingly being asked to tell the public the truth about the crises we face in simple and direct terms. The truth is that we are shocked by the ferocity of the extreme weather events in 2023.”

Face à l’urgence de la crise écologique, la capitale des Pays-Bas a lancé un plan de relance basé sur cette nouvelle pensée économique associant justice sociale et transition écologique. Un exemple à suivre.

Previously, anthropogenic ecological overshoot has been identified as a fundamental cause of the myriad symptoms we see around the globe today from biodiversity loss and ocean acidification to the disturbing rise in novel entities and climate change. In the present paper, we have examined this more deeply, and explore the behavioural drivers of overshoot, providing evidence that overshoot is itself a symptom of a deeper, more subversive modern crisis of human behaviour. We work to name and frame this crisis as ‘the Human Behavioural Crisis’ and propose the crisis be recognised globally as a critical intervention point for tackling ecological overshoot. We demonstrate how current interventions are largely physical, resource intensive, slow-moving and focused on addressing the symptoms of ecological overshoot (such as climate change) rather than the distal cause (maladaptive behaviours). We argue that even in the best-case scenarios, symptom-level interventions are unlikely to avoid catastrophe or achieve more

The UN Secretary-General’s Early Warnings for All Initiative (EW4All) is rapidly gaining ground. Action plans are being rolled out around the world to ensure that people know when dangerous weather is headed their way. Tajikistan has held a two-day national consultation, co-chaired by the Deputy Prime Minister and the UN Resident Coordinator in Tajikistan, and bringing together key stakeholders from state and international organizations, media and civil society. Ethiopia also held an inception workshop.

Antarctica’s sea ice levels are plummeting as extreme weather events happen faster than scientists predicted