Jean-Marc Jancovici

“Water crisis” has become the default label for almost any episode of water stress, from short-lived droughts to decades-long overuse of rivers and aquifers. Yet in many regions of the world, water problems no longer resemble a crisis in the conventional sense. They represent a post-crisis failure state in which human–water systems have exceeded their hydrological carrying capacities, and societies have spent beyond their sustainable hydrological budgets for so long that critical water assets are depleted, some ecosystem damages are irreversible on human time scales, and a return to “normal” is infeasible even with prohibitive economic, social, and environmental costs.

Ancien cadre supérieur en communication, entrepreneur social, cofondateur du tiers-lieu emblématique Darwin Éco-système à Bordeaux, Jean-Marc Gancille a longtemps incarné une écologie territoriale, innovante, joyeuse et expérimentale. Mais après plus de vingt ans d’engagement, son constat est sans détour : l’écologie réformiste ne change rien au système actuel qui détruit le vivant.

Purpose Animal emissions account for nearly 60% of total greenhouse gas emissions from the livestock sector. To estimate these emissions, the Food and Agriculture Organization of the United Nations (FAO) developed a dedicated module within the Global Livestock Environmental Assessment Model (GLEAM). Although previous studies have explored selected inputs for specific animals and emission types, a comprehensive analysis of all 92 inputs (parameters and emission factors) had not been conducted. This study aimed to identify the most influential inputs affecting ruminant emissions in GLEAM.

According to Carbon Tracker’s analysis, fossil fuel companies are cutting capital investment, slashing exploration, and paying record dividends — like Saudi Aramco’s $10 billion payout — rather than building future growth. It’s a strategy that signals retreat, not resilience. “The energy transition isn’t being led by incumbents,” Mark Campanale warns. “It’s happening around them.”

This volume addresses political action in Anthropocene and tension between the Promethean project of modernity and post-Promethean approach.

This Handbook explains the complexity of the concept of the Anthropocene, scientific and a political concept and also an ideological concept.

Une importante fuite de tritium a été mesurée dans les eaux souterraines de l’unité de production d’électricité de Tricastin dans la Drôme. EDF et l’autorité de sûreté nucléaire assurent que la fuite est circonscrite. Cependant les liquides contaminés se retrouvent fatalement dans l’environnement.

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This paper analyses how recent trends in heat waves impact heat warning systems. We performed a retrospective analysis of the challenges faced by the French heat prevention plan since 2004. We described trends based on the environmental and health data collected each summer by the French heat warning system and prevention plan. Major evolutions of the system were tracked based on the evaluations organized each autumn with the stakeholders of the prevention plan.

Freshwater availability is changing worldwide. Here we quantify 34 trends in terrestrial water storage observed by the Gravity Recovery and Climate Experiment (GRACE) satellites during 2002–2016 and categorize their drivers as natural interannual variability, unsustainable groundwater consumption, climate change or combinations thereof. Several of these trends had been lacking thorough investigation and attribution, including massive changes in northwestern China and the Okavango Delta. Others are consistent with climate model predictions. This observation-based assessment of how the world’s water landscape is responding to human impacts and climate variations provides a blueprint for evaluating and predicting emerging threats to water and food security. Analysis of 2002–2016 GRACE satellite observations of terrestrial water storage reveals substantial changes in freshwater resources globally, which are driven by natural and anthropogenic climate variability and human activities.