La veille

“New Scientist” commence l’année avec un tunnel vers l’enfer, un projet pharaonique qui vise à accéder aux entrailles de la Terre. Le magazine britannique en fait sa couverture.

Referring to the Paris Agreement’s target of keeping Earth from warming no more than 1.5 degrees Celsius since the Industrial Revolution, the number has become a rallying cry for climate advocates and scientists, who say the goal is humanity’s best bet on avoiding the most catastrophic outcomes of climate change by the end of the century. Venturing even 0.5 degrees past that threshold could drastically increase the frequency and severity of extreme weather, biodiversity loss, famine and water scarcity, as well as make it more likely that tipping points accelerate warming further, climate scientists say.

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.”

Alors que la mer Méditerranée et l’Atlantique Nord connaissent des records de chaleur, une zone dans l’océan Pacifique se refroidit, depuis maintenant trente ans. Un mystère que les scientifiques s’échinent à comprendre pour évaluer au mieux l’impact de cette “langue froide”, qui pourrait faire basculer notre avenir climatique.

Eleven of the 20 largest economies got a C or worse on a renewable energy report card, which assessed their plans to reach net zero and their targets for producing and using renewable energy

More than three-quarters of the world's largest rainforest has become less resilient to drought since the early 2000s, with areas near humans and with lower rainfall being the worst hit

L’algue du partenariat symbiotique qui constitue les lichens s’adapte aux évolutions du climat à un rythme extrêmement lent, suggère une nouvelle étude.

Rapidly rising levels of atmospheric methane are "very bad news for humanity and the planet," warned one observer.

How we can harness the staggering diversity of trees to lock away more carbon

The new top scientist at the National Aeronautics and Space Administration wants the famed space agency to become a leading voice on climate change science, too.