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filtre:
impacts
2026
New report predicts a heavy toll from Nigeria to the US – and comes on top of existing impacts of the climate crisis
Le gestionnaire français du réseau de transport d’électricité RTE a présenté ce 21 septembre ses premières analyses concernant le fonctionnement du système électrique au cours d’un été « marqué par des vagues de chaleur exceptionnelles en termes de précocité, d’intensité et de durée ainsi que par une sécheresse persistante ».
The term ‘Anthropocene’ was coined in recognition that human activities have ended the relatively stable environment of the Holocene epoch. However, its widespread adoption across the humanities, arts and sciences has led to diverse and sometimes incompatible definitions. In this Perspective, we argue for a stabilized definition of the Anthropocene epoch to help address contemporary environmental challenges, and explore various applications of the Anthropocene across disciplines. The Anthropocene epoch, with a proposed start point in 1952, underscores that human-driven global-scale environmental disruption differs from earlier human impacts of the Holocene, which did not cause such profound destabilization. This clear distinction enables quantitative and qualitative comparisons between the Holocene and Anthropocene epochs, as already utilized, for instance, within the planetary boundaries framework. As the Anthropocene Earth system transformation is systemic, political responses also need be systemic, rather
Chronic exposure to pesticide mixtures through diet is common, yet their combined metabolic effects and interactions with dietary factors remain unclear. We identified four pesticides prevalent in human exposure (imazalil, thiabendazole, boscalid, lambda-cyhalothrin) and assessed their combined impacts on hepatic metabolism and metabolic homeostasis using human liver cells and male mice fed standard chow or western diets. We found that the pesticide mixture induced metabolic perturbations in human hepatocytes. In addition, the pesticide mixture altered hepatic gene expression in chow-fed mice and exacerbated western diet-induced glucose intolerance, fasting hyperglycemia, and insulin resistance without affecting body weight or liver steatosis. These findings reveal that dietary context influences the metabolic consequences of pesticide mixtures, highlighting the need to consider nutritional status when evaluating environmental contaminant risks. Our results suggest that pesticide mixtures at reference doses m
L’Agence de la transition écologique (Ademe) évoque les « impacts environnementaux importants » de l’intelligence artificielle générative dans un nouvel avis publié le 22 juillet (et « rédigé sans IA générative », précise l’Ademe).
Food security (FS) remains a pressing issue at the global scale. Current literature about FS points to a plethora of causes of food insecurity, among which climate change and the loss of biodiversity are critical to all facets of food security. Building on this notion, we advocate for a comprehensive understanding of drivers of food security, thus contributing by examining climate change and biodiversity as drivers of food security. The interest in this subject stems not only from the scientific community, but also from practitioners and policymakers. However, holistic encapsulation of the relevant literature addressing this subject is currently lacking. This review systematically analyses and categorises the drivers of FS induced by climate change and biodiversity. Following the Systematic Literature Review approach, 342 peer-reviewed studies were selected and synthesised. Our findings identified 11 categories of climate change drivers and 9 categories of biodiversity drivers of FS. These drivers were found
Comment réagissent notre corps et notre cerveau aux chaleurs extrêmes? Quels risques physiques, psychiques et sociétaux font peser sur nous l’augmentation des températures? Comment faire face aux vagues de chaleur aujourd’hui et dans le futur ? Christian Clot est président du Human Adaptation Institute et auteur de “Les clés de l’adaptation humaine”, publié chez Denoël.
Scientists know how to alter our atmosphere to try and fix climate change, but doing so could bring other potential unintended impacts
Actuellement, trois quarts des modèles de simulation climatique prévoient pour l'indice océanique El Nino une anomalie d'environ +2 °C, ce qui signifie donc un "super El Nino". L'Organisation météo mondiale invite à se préparer.
Présenté comme le futur plus grand datacenter d’Europe, le projet Campus IA doit voir le jour à Fouju, un petit village de Seine-et-Marne. Derrière les promesses de développement économique, des associations alertent sur une infrastructure aux impacts environnementaux et énergétiques considérables. Un pique-nique est organisé ce dimanche pour sensibiliser les habitant·es.
