Justice & Paix

Flash drought, characterized by unusually rapid drying, can have substantial impact on many socioeconomic sectors, particularly agriculture. However, potential changes to flash drought risk in a warming climate remain unknown. In this study, projected changes in flash drought frequency and cropland risk from flash drought are quantified using global climate model simulations. We find that flash drought occurrence is expected to increase globally among all scenarios, with the sharpest increases seen in scenarios with higher radiative forcing and greater fossil fuel usage. Flash drought risk over cropland is expected to increase globally, with the largest increases projected across North America (change in annual risk from 32% in 2015 to 49% in 2100) and Europe (32% to 53%) in the most extreme emissions scenario. Following low-end and medium scenarios compared to high-end scenarios indicates a notable reduction in annual flash drought risk over cropland. Flash droughts are projected to become more frequent unde

Le 24 avril dernier, le “Sommet de la Mer du Nord” a réuni à Ostende, en Belgique, les neuf pays européens (France, Grande-Bretagne, Allemagne, Pays-Bas, Belgique, Irlande, Danemark, Luxembourg, Norvège) qui souhaitent donner à l’éolien marin une impulsion nouvelle et contribuer ainsi à atteindre ...

Flash droughts can develop within a few weeks, causing water shortages, damaging crops and worsening fire risks.

Aujourd’hui, le méthane est le deuxième gaz à effet de serre anthropique le plus abondant dans l’atmosphère, représentant environ 20 % des émissions mondiales. Dans les centrales actuelles au gaz, le méthane produit par les bactéries est converti en énergie électrique via la combustion. Mais la quantité maximale de méthane convertie y plafonne à moins de 50 %. Des chercheurs de l’Université de Radboud de Nimègue (Pays-Bas) veulent utiliser des bactéries AMNE pour cette conversion.

A new analysis of flash droughts finds that droughts coming on suddenly seem to be striking faster in the last two decades, with approximately 33–46 percent of flash droughts now emerging within just five days.

At the tail end of winter in 2015, the ground in the Wimmera in northwestern Victoria had been a little dry but conditions weren't too bad for farmers. The crop season was going well.

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