For some time, hailstorms have been talked about for their unprecedented violence and their spectacular impacts. Screened vehicles, ripped roofs, crops destroyed in a few minutes: these scenes, still rare a decade ago, are now repeating each season in certain regions of Europe. In parallel, scientists and climatologists wonder about a much more worrying development.
Depending on the region, events become more severe. Larger hailstones, more destructive impacts, heavier costs. The new atmospheric configurations caused by global warming seem to deeply redesign the dynamics of hailstorms. While some territories, such as northern Italy or center of France, become increased risk zones, climate models are still struggling to predict these phenomena. Understand what changes, why and where, becomes an increasingly urgent scientific and societal issue.
a more violent hail
Climate change acts not only on temperatures or precipitation. It also modifies the way the hail is formed and strikes. And the observation drawn up by several teams of researchers is final. As the climate warms up, the frequency of hail episodes could decrease, but their intensity increases.
in question, a warmer and wealthier atmosphere. According to Tim Raupach, researcher at the University of South Wales and the main author of a summary published in Nature Reviews Earth & Environment, this new atmospheric configuration generates more instability. This promotes the formation of more powerful convective thunderstorms, capable of producing violent ascending currents. They play a key role in the growth of … Read The continuation on science and life
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