© Philippe Sainte-Laudy www.naturephotographie.com - The Steingletscher glacier, in Switzerland, has retreated 3.4 km since peaking at a length of 23 km in 1860. About 1.4 km of the shrinkage has happened over the past 56 years. The Aletsch was once seen as a threat, adding ice and threatening to encroach on inhabited areas. These days, the glacier is more of a threat from its melting ice worsening valley floods.

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