A historical perspective on glacial retreat

Researchers at ETH Zurich and WSL have for the first time reconstructed the extent of Switzerland’s glacier ice loss in the 20th century. For this purpose, the researchers used historical imagery and conclude that the country’s glaciers lost half their volume between 1931 and 2016.

Comparison of the Fieschergletscher viewed from Märjelenalp in the years 1928 and 2021
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