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Nepal's Flood Disaster and the Impact of Climate Change Loom Large in the Icy Shadow of Mont Blanc
Scientists say record heat waves have destabilized Alpine peaks and pushed Mont Blanc rock falls to about 400 this year, roughly 10 times the level two decades ago.
Researcher Ludovic Ravanel expects a record 400 rock collapses in the Mont Blanc massif this summer, roughly 10 times higher than two decades ago and a defining feature of the 2026 season.
Europe's record summer heatwaves have savaged the permafrost acting as cement for Alpine peaks, leaving rock faces unstable and forcing Deputy Mayor Stéphane Bozon of Chamonix-Mont-Blanc to warn of debris falling onto inhabited areas.
Mountain guide Stuart MacDonald cancelled summit plans last week due to melting and rock fall risks, while in Lombardy, Alpine glaciers have lost more than 40% of their surface area since 1991.
Floods in Nepal and China on August 26 were triggered by bedrock and glacier ice collapses, with scientists assessing that rising global temperatures are increasing the likelihood of such catastrophic events.
With the Aiguille du Midi peak recording its warmest July at 3.3 C, scientists emphasize that retreating glaciers and unstable terrain are unlikely to reverse, fundamentally altering mountain safety in coming years.