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avril 2026

Beneath the surface of the Pacific, a massive pool of heat is preparing to reshape global weather patterns. Time is running out to prepare for a climate shock of unprecedented scale. As 2026 unfolds, the Pacific Ocean is priming a catastrophic El Niño that threatens to cripple global food systems, trigger widespread economic instability, and shatter planetary temperature records.
Sixty-five million people will die from pollution caused by nuclear energy and weapons programs built before 1989, according to a report published earlier this year by a European scientific committee. The research, from the European Committee on Radiation Risk (ECRR), raises doubts about previous estimates of the risk posed to humans from exposure to radiation from nuclear power and weapons. The study by the ECRR, based on a risk-assessment model developed over the past five years, challenges previous assumptions about the safety of even minimum exposure to low-level radiation.
Environment News: UNITED NATIONS: Vanuatu will renew its climate justice fight at the United Nations General Assembly with a draft resolution that was watered down afte.
Climate models show considerable discrepancies in their future projections around the Atlantic, mainly due to uncertainties in the fate of the Atlantic Meridional Overturning Circulation (AMOC). Climate models suggest a reduction in AMOC strength of 32 ± 37% by 2100 (90% probability, Shared Socioeconomic Pathways 2-4.5 scenario, Coupled Model Intercomparison Project Phase 6). To refine this estimate and reduce its uncertainty, we use four different observational constraint methods. The best one, which provides the lowest leave-one-out error, integrates a large set of observable variables using ridge-regularized linear regression—a method unusual in climate science. It gives an estimate of the AMOC slowdown of 51 ± 8% (90% probability), i.e., a weakening ∼ 60% stronger than suggested by the multimodel mean. This refinement mainly results from correcting a bias in South Atlantic surface salinity, consistent with recent studies emphasizing its role in the proximity to an AMOC tipping point. This more substantial
The critical Atlantic current system appears significantly more likely to collapse than previously thought after new research found that climate models predicting the biggest slowdown are the most realistic. Scientists called the new finding “very concerning” as a collapse would have catastrophic consequences for Europe, Africa and the Americas.
À Kolwezi, dans le sud-est de la RDC, la découverte de minerais radioactifs sur le remblai T17, exploité artisanalement, a déclenché une urgence radiologique.
A team including scientists, Indigenous people and conservationists point to the ecosystem connecting Yellowstone and the Yukon as an example of a region where humans and nature are flourishing together.
In a Swiss forest lab, scientists tracked how beech and oak leaves cool themselves and pinpointed the moment heat and drought push them past their limits.
Thawing permafrost may release greenhouse gases much faster than previously expected, potentially accelerating climate change even further. Experiments conducted by researchers at the University of Leeds, and published in the AGU journal Earth’s Future, show that when permafrost thaws, it becomes 25 to 100 times more permeable. This change allows significantly greater amounts of climate-forcing gases to escape into the atmosphere.
Analysis of six extreme heatwaves found when temperature and humidity were accounted for, all were potentially deadly for older people
Around 153 BCE, Cato the Elder, one of Rome’s most prominent senators, began ending every single one of his speeches with the same words: “Carthago delenda est”, or “Carthage must be destroyed”.
Millions of Pages of Previously Classified Documents on Industrial Poisons (and Counting)
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.

mars 2026

We can’t know how long the war in the Middle East will last. Nor can we know who will “win” it, and in which terms. What we know is that the destruction already wreaked on things and people is immense, and it keeps escalating. The longer the war, the bleaker their perspectives in a region already plagued by all sorts of problems, including drought, soil degradation, ecosystem damage, scarce agricultural resources, declining fertility rates, and more.
Thousands of rallies are expected across the U.S. on Saturday as part of the latest “No Kings” protest against the policies of President Donald Trump and his administration. Organizers said more than 3,200 events are planned in all 50 states for what they hope could be the largest single-day nonviolent protest in U.S. history. The two previous No Kings events attracted millions of participants.
Anti-authoritarian rallies, taking place in all 50 states plus 16 countries, are expected to be biggest in US history
Climate change is causing measurable harm globally1,2. Political and legal efforts seek to link these damages with specific emissions, including in discussions of loss and damage (L&D)3,4; however, no quantitative definition of L&D exists5,6, nor is there a framework to link past and future emissions from specific sources to monetized, location-specific damages. Here we develop such a framework, which is integrated with recent efforts to estimate the social cost of carbon7. Using empirical estimates of the non-linear relationship between temperature and aggregate economic output, we show that future damages from past emissions—one component of L&D—are at least an order of magnitude larger than historical damages from the same emissions. For instance, one tonne of CO2 emitted in 1990 caused US$180 in discounted global damages by 2020 ($40–530) and will cause an additional $1,840 through 2100 ($500–5,700). Thus, settling debts for past damages will not settle debts for past emissions. In other illustrative esti
The fragility of the global food system fills me with dread – and the war with Iran has exposed just how close to collapse it is
Le philosophe de l'environnement Rupert Read dit à Ella Whelan la panéliste Moral Maze pourquoi nous ne pourrons peut-être plus profiter du même niveau de vie pour le bien de la planète et des générations futures.
Models are converging on prediction of an El Nino beginning this year, peaking in early 2027. After overlooking the possibility of an El Nino this year, some reporting is jumping on a “Super El Nino” bandwagon. El Nino strength and frequency are important, especially the issue of whether these are modified by global warming. However, the more important knowledge that needs to be extracted from near-term global warming concerns interpretation of ongoing, extraordinary, acceleration of ocean surface warming. Impacts of this ocean warming include a factor of two greater warming over land, increased extreme precipitation, and poleward movement of subtropical conditions.