Flux continu

The White House has instructed NASA employees to terminate two major, climate change-focused satellite missions. As NPR reports, Trump officials reached out to the space agency to draw up plans for terminating the two missions, called the Orbiting Carbon Observatories. They've been collecting widely-used data, providing both oil and gas companies and farmers with detailed information about the distribution of carbon dioxide and how it can affect crop health.

New research is warning that the most likely outcome is that human civilization is poised for collapse. As The Guardian reports, a sweeping new historical survey that analyzes 5,000 years and the collapse of more than 400 societies makes the case that we're in for a rude awakening.

New research indicates that more than a fifth of the global ocean has darkened over the past two decades, with the depths that sunlight can penetrate significantly retreating. This "reduces the amount of ocean available for animals that rely on the Sun and the Moon for their survival and reproduction," said study author Thomas Davies, associate professor of marine conservation at the University of Plymouth, in a statement about the work.

blue whale vocalizations dropped by almost 40 percent, according to the study, with populations of krill and anchovy collapsing. "When you really break it down, it’s like trying to sing while you're starving," Ryan explained. "They were spending all their time just trying to find food."

An epic analysis of 5,000 years of civilisation argues that a global collapse is coming unless inequality is vanquished

Le traité sur la Haute Mer peine à entrer en vigueur. Pourtant, des scientifiques de renom alertent aujourd’hui : les écosystèmes marins n’attendront pas. Sans une action immédiate, c’est la vie sur notre Terre qui pourrait être menacée.

Sur les hauteurs de Chamonix (Haute-Savoie), la Mer de glace devrait perdre encore au moins 80% de son volume d’ici la fin du siècle. Symbole de l’accélération du réchauffement climatique, la probable disparition de ce glacier historique bouleverse l’économie locale, et notamment le tourisme.

Le changement climatique causé par la combustion des énergies fossiles a rendu la récente vague de chaleur dans l’ouest de l’Europe jusqu’à 4 °C plus chaude dans de nombreuses villes, exposant des milliers de personnes vulnérables à un stress thermique dangereux, selon une "étude rapide" publiée mercredi.

Le combat contre le changement climatique nécessite des innovations audacieuses. Parmi elles, des chercheurs suisses viennent de franchir un pas spectaculaire avec la création d’un matériau « vivant » capable de capturer le dioxyde de carbone directement dans l’atmosphère, grâce à un ingrédient naturel surprenant : les cyanobactéries, ou algues bleu-vert. Ce matériau, fruit d’une collaboration à l’École polytechnique fédérale de Zurich (ETH), ouvre la voie à des bâtiments capables non seulement de se renforcer, mais aussi de contribuer activement à la lutte contre le réchauffement planétaire.

Heatwaves can lead to considerable impacts on societal and natural systems. Accurate simulation of their response to warming is important for adaptation to potential climate futures. Here, we quantify changes of extreme temperatures worldwide over recent decades. We find an emergence of hotspots where the hottest temperatures are warming significantly faster than more moderate temperatures. In these regions, trends are largely underestimated in climate model simulations. Globally aggregated, we find that models struggle with both ends of the trend distribution, with positive trends being underestimated most, while moderate trends are well reproduced. Our findings highlight the need to better understand and model extreme heat and to rapidly mitigate greenhouse gas emissions to avoid further harm.

Financé à hauteur de 20 millions d’euros par le Fonds européen de défense (FED), MARTE ne se limite pas à la fabrication d’un nouveau blindé. Il incarne une vision stratégique : reprendre le contrôle industriel et technologique de l’armement terrestre lourd, un domaine longtemps dominé par des plateformes vieillissantes issues de la guerre froide ou par des fournisseurs extérieurs, notamment américains.

PFAS : un rapport inédit de l'ONG Générations Futures révèle l'ampleur de la contamination alimentaire aux "polluants éternels".

Trois réseaux de transport de gaz en Espagne et en France ont annoncé jeudi la création d'une société commune franco-espagnole, BarMar, qui pilotera la construction du futur pipeline maritime devant acheminer de l'hydrogène entre Barcelone et Marseille. Cette infrastructure s'inscrira dans le cadre du projet européen plus vaste H2Med, visant à relier les réseaux d'hydrogène de la péninsule ibérique à l'Allemagne et au nord-ouest de l'Europe "pour approvisionner le continent en hydrogène vert abordable", précise H2Med sur son site internet.

For more than three decades, Brazilian climate scientist Carlos Nobre has warned that deforestation of the Amazon could push this globally important ecosystem past the point of no return. Working first at Brazil’s National Institute for Space Research and more recently at the University of São Paulo, he is a global authority on tropical forests and how they could be restored.

Le mag des technos douces et des futurs désirables On sait faire sobrement. On vous montre comment.

Plan(s) B reçoit de nouveau Thomas Norway, ingénieur et conférencier sur les questions énergétiques. Thomas était déjà passé chez nous pour parler de l'histoire de l'énergie sous l'angle du Taux de Retour Energétique / Energy Return Over Investment (EROI).

When people reflect on how their actions shape the future, they are more likely to support solutions to present-day issues like poverty and inequality.

Identifying the socio-economic drivers behind greenhouse gas emissions is crucial to design mitigation policies. Existing studies predominantly analyze short-term CO2 emissions from fossil fuels, neglecting long-term trends and other GHGs. We examine the drivers of all greenhouse gas emissions between 1820–2050 globally and regionally. The Industrial Revolution triggered sustained emission growth worldwide—initially through fossil fuel use in industrialized economies but also as a result of agricultural expansion and deforestation. Globally, technological innovation and energy mix changes prevented 31 (17–42) Gt CO2e emissions over two centuries. Yet these gains were dwarfed by 81 (64–97) Gt CO2e resulting from economic expansion, with regional drivers diverging sharply: population growth dominated in Latin America and Sub-Saharan Africa, while rising affluence was the main driver of emissions elsewhere. Meeting climate targets now requires the carbon intensity of GDP to decline 3 times faster than the global

When a small Swedish town discovered their drinking water contained extremely high levels of Pfas, they had no idea what it would mean for their health and their children’s future

Une centaine d’organisations nationales et locales de la société civile appellent à une mobilisation le 29 juin pour dire non à la proposition de loi Duplomb qui annihile toutes avancées environnementales.