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septembre 2026

Exclusive: Angela Eagle urges UK citizens to be ‘a bit more resilient’ as they plan for national emergencies.

juin 2026

Do we really want to play dice with our planet?

avril 2026

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.

mars 2026

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.

février 2026

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.

décembre 2025

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

novembre 2025

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.