Articles 2020

Dimanche 19 juillet, une dizaine d’États ouest-africains ont signé un accord intergouvernemental ouvrant la voie à la réalisation d’un gazoduc reliant le Nigeria au Maroc. Une initiative du roi Mohammed VI, qui cherche aussi à concurrencer le projet de gazoduc transsaharien promu par l’Algérie.

A vast system of Atlantic currents that delivers warmth to northern Europe is at risk of collapse, according to a growing body of research. The latest study to warn of its demise finds there is at least a 10 percent chance that a collapse may already be “locked in.”

The Green Scare created precedents that today reach far beyond radical environmentalism, and threaten anyone willing to engage in direct action.

Pour la première fois, un robot humanoïde open source se monte chez soi comme un meuble en kit. La société singapourienne Menlo Research commercialise Asimov à 15 000 dollars — soit presque uniquement le coût des matériaux. Derrière ce prix, une ambition claire : sortir la robotique bipède des laboratoires d’élite pour la mettre entre les mains des développeurs indépendants et des chercheurs du monde entier.

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.

Dans le World Energy Outlook 2025 de l’Agence internationale de l’énergie (AIE) rendu public ce 12 novembre(1), le « Current Policies Scenario » (CPS), tombé en disgrâce en 2019, refait surface. Ce scénario suppose la pleine application des « politiques et régulations déjà en place ». C’est un scénario de triomphe de l’Amérique trumpienne : le pétrole et le gaz dominent encore le système énergétique en 2050 ; les émissions de CO2 diminuent à peine d’ici 2050 ; la température mondiale n’est pas stabilisée avant la fin du siècle.

Scientists say ‘shocking’ discovery shows rapid cuts in carbon emissions are needed to avoid catastrophic fallout

The vast ice of Antarctica has long seemed impregnable. But sudden changes are arriving – from shrinking sea ice to melting ice sheets and slowing ocean currents.

You are some of the leading reporters and editors who have covered the Netanyahu genocidal mass murder and mayhem in Gaza. This important plea asserts that you all know better than to rely only on the extensive understatement of the deaths and serious injuries put forward by Hamas. You need to DO BETTER for your readers by digging deeper into the much higher estimates of deaths by experts in disaster casualties. Eye-witness accounts which do not support the Hamas undercount.

Sascha is a U.K.-based staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe. Besides writing, she enjoys playing tennis, bread-making and browsing second-hand shops for hidden gems.

Antarctica's remote and mysterious current has a profound influence on the climate, food systems and Antarctic ecosystems. Can we stop it weakening by 2050?

The Antarctic Circumpolar Current (ACC) is the world's strongest ocean current and plays a disproportionate role in the climate system due to its role as a conduit for major ocean basins. This current system is linked to the ocean's vertical overturning circulation, and is thus pivotal to the uptake of heat and CO2 in the ocean. The strength of the ACC has varied substantially across warm and cold climates in Earth's past, but the exact dynamical drivers of this change remain elusive. This is in part because ocean models have historically been unable to adequately resolve the small-scale processes that control current strength. Here, we assess a global ocean model simulation which resolves such processes to diagnose the impact of changing thermal, haline and wind conditions on the strength of the ACC. Our results show that, by 2050, the strength of the ACC declines by ∼20% for a high-emissions scenario. This decline is driven by meltwater from ice shelves around Antarctica, which is exported to lower latit

Pour développer l’intelligence artificielle en France, 109 milliards d’euros seront investis, a annoncé dimanche soir le chef de l’État. Une façon de placer le pays dans la course des grandes puissances au sein de ce secteur en pleine croissance, alors que s’ouvre à Paris le sommet sur l’IA qui réunit dirigeants politiques et économiques du monde entier.

L ‘entreprise tricolore d’IA a rendu son agent conversationnel - «Le Chat» - disponible en version application mobile jeudi 6 février, sur Apple et Androïd.

The Atlantic Ocean's most vital ocean current is showing troubling signs of reaching a disastrous tipping point. Oceanographer Stefan Rahmstorf tells Live Science what the impacts could be.

The network of Atlantic ocean currents keeping the Earth's climate stable are far closer to collapse than first estimated, scientists warn.

AMOC collapse would bring severe global climate repercussions, with Europe bearing the brunt of the consequences.

Le record de production de pétrole réalisé par le géant américain ExxonMobil, notamment grâce au rachat plus fructueux que prévu de Pioneer, lui a permis d'échapper au destin de ses grands concurrents mondiaux dont les résultats ont été plombés par des marges de raffinage rognées.

Several studies in recent years have suggested the crucial system — the Atlantic Meridional Overturning Circulation, or AMOC — could be on course for collapse, weakened by warmer ocean temperatures and disrupted saltiness caused by human-induced climate change. But the new research, which is being peer-reviewed and hasn’t yet been published in a journal, uses a state-of-the-art model to estimate when it could collapse, suggesting a shutdown could happen between 2037 and 2064.

An international team of scientists has warned against relying on nature providing straightforward 'early warning' indicators of a climate disaster, as new mathematical modeling shows new fascinating aspects of the complexity of the dynamics of climate. It suggests that the climate system could be more unpredictable than previously thought.