Alpine glaciers face collapse risk as Europe warms fastest, scientist warns

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Glaciologist Olaf Eisen of the Alfred Wegener Institute warns that glacier collapses are possible in the Alps after a devastating glacier disaster in Nepal. He cited a May 2025 collapse in Blatten, Switzerland, where one person died despite evacuation. Eisen said Europe is one of the fastest-warming continents due to anthropogenic climate change, making high mountains unstable.
Key Facts
- Olaf Eisen, a glaciologist at the Alfred Wegener Institute for Polar and Marine Research, warned that glacier collapses are possible in the Alps.
- A glacier collapse in Blatten, Switzerland, in May 2025 killed one person despite prior evacuation of residents.
- The ice volume that fell in the Nepal disaster was roughly 10–20 times greater than in the Blatten event.
- Switzerland has lost about 1,000 glaciers since 1850, leaving around 1,300 today, and its glaciers lost 38% of total ice volume between 2000 and 2024.
- A glacier collapse on the Marmolada in Italy in 2022 killed 11 mountaineers.
Glacier Collapse Risk
Olaf Eisen of the Alfred Wegener Institute for Polar and Marine Research said glacier collapses are possible in the Alps. He cited a May 2025 collapse in Blatten, Switzerland, where residents were evacuated in advance but one person died. The ice volume that fell in the Nepal disaster was about 10–20 times greater than in Blatten. Eisen said Europe is one of the fastest-warming continents due to anthropogenic climate change, and rapid glacier retreat and permafrost thaw make high mountains unstable.
Regional Vulnerability
The risk is especially high in mountainous areas at 2,500–3,000 meters in France, Italy, Austria, and Switzerland. Extreme weather such as heatwaves and heavy rainfall can further increase the likelihood of glacier collapses. Switzerland has lost about 1,000 glaciers since 1850, leaving around 1,300 today. Between 2000 and 2024, Swiss glaciers lost 38% of their total ice volume.
Past Collapses and Prevention
Rising temperatures melt permafrost and glacier beds, weakening the bond between ice mass and rock and increasing collapse risk. A collapse on the Marmolada glacier in Italy in 2022 killed 11 mountaineers. Eisen said the most effective way to preserve glaciers is to curb climate warming, while mechanical protection measures yield only short-term results in specific areas.