Flux continu

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.

Dopé par un sentiment d’invincibilité, Pete Hegseth, l’un des artisans de l’offensive sur le régime iranien, a très mal anticipé la capacité de résistance et le pouvoir de nuisance de Téhéran.

De klimaatverandering gaat steeds sneller. De voorbije 10 jaar warmde ons klimaat op met 0,35 graden Celsius, terwijl dat voordien nog 0,2 graden per decennium was. Dat ontdekten onderzoekers die de kortetermijngevolgen van weerfenomenen, vulkaanuitbarstingen en zonnestraling op de temperatuur wegfilterden. Dat komt, ironisch genoeg, onder andere door onze inspanningen om de industrie en het verkeer properder te maken.

De koningspinguïns rond de Zuidpool slagen er wonderwel in om zich aan te passen aan de gevolgen van de klimaatverandering. Ze broeden vandaag 19 dagen vroeger dan een kwarteeuw geleden. Bovendien overleeft de helft meer jongen. Toch blijft de vraag hoe lang ze zich kunnen blijven aanpassen.

Critics say brash, bombastic Fox News host out of his depth to guide US military through murky new Middle East conflict

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.

En faisant pression sur Donald Trump pour étendre la guerre, Benyamin Nétanyahou espère venir à bout de son ennemi iranien et du Hezbollah, tout en accroissant son emprise sur le sud du Liban.

Fears US-Israeli onslaught could lead regime to push for bomb or embolden other groups to steal uranium stockpile

De wereldwijde opwarming van de oceanen kan de hoeveelheid beschikbare vis met 19,8% doen afnemen. Dat toont een nieuwe studie in het wetenschappelijk tijdschrift Nature aan.