Swiss Glaciers Shrink 10 Per Cent In Five Years: Study

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According to a study, Switzerland's glaciers have lost a tenth of their volume in the past 5 years, which is the highest melting rate for more than 100 years.

Written By Press Trust Of India | Mumbai | Updated On:
Swiss

Switzerland's glaciers have lost a tenth of their volume in the past 5 years alone- a melting rate unmatched during observations stretching back more than a century, a study showed Tuesday. Measurements on 20 Swiss glaciers have shown that melt rates this year have reached "record levels", according to the annual study on the state of the glaciers, published by the Cryospheric Commission at the Swiss Academy of Sciences. The study, released amid growing global alarm over climate change, found that intense heatwaves over the summer in Switzerland had dashed hopes that an exceptionally snow-filled winter would limit the glacier melt this year.

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Snow cover 20-40% higher than usual

The commission said that in April and May, snow cover on the glaciers was between 20 and 40% higher than usual, with depths of up to 6m measured in some places as late as June. But during two weeks of intense heat at the end of June and again in late July, "the volume of snow and ice melting on Swiss glaciers was equivalent to the country's total annual consumption of drinking water," it said in a statement. The result, it said, was that the thick snow layer quickly disappeared and the strong melt continued until early September. "This means that, over the past 12 months, around two percent of Switzerland's total glacier volume has been lost," the commission said, adding that the rate of loss over the past five years "exceeds 10%".

Read: Mont Blanc: Huts Evacuated After Warning Over Collapse Of Huge Glacier

'Funeral march'

That marks "a rate of decline never previously observed in the time series extending back for more than a century," it said. Tuesday's study comes less than a month after a "funeral march" was undertaken up a steep mountainside to mark the disappearance of the Pizol glacier- one of more than 500 glaciers to vanish from the Swiss Alps since the turn of the 20th century. A recent study by glaciologists at the ETH technical university in Zurich indicated that more than 90% of some 4,000 glaciers dotted throughout the Alps could disappear by the end of this century if greenhouse gas emissions are not reined in.

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