While European glaciers have been shrinking for decades, data and field reports show that the melting this summer is the most severe on record.
“The combined heat and lack of precipitation have put the glaciers in a state that is unprecedented,” said Jacquemart, who also works at the Swiss Federal Institute for Forest, Snow and Landscape Research. It’s alarming because there isn’t just one glacier experiencing high melt, but “rather the fact that the situation is so bad everywhere in the European Alps,” she said.
Two decades later, he visited to find the area was mainly rock and debris, the snow cover gone both on the ridge and the summit face. A glacier leading from the summit was now bare ice because temperatures have become too warm to retain the snowpack. Ice and firn, or dense snow leftover from previous seasons, also disappeared from the ridge.Mountaineering practices have already changed in the past few decades in response, he said.
“In the last 2 decades, the lack of summer snow got normal, and the melting season was getting longer and longer,” Fischer said in an email., the duration of snow cover near the valley floor of the Northern Alps has been reduced by five weeks since the 1970s. By 2050, snow cover could be reduced by another four to five weeks.Additionally, the number of hot days could increase by 15 to 30 days on the valley floor and in the mid-mountains.
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