Changes in snow coverage threaten biodiversity of Arctic nature

Many of the plants inhabiting northern mountains depend on the snow cover lingering until late spring or summer. Snow provides shelter for plants from winter-time extreme events but at the same time it shortens the length ...

Snow in the Andes as clean as Canadian Arctic: study

Snow covering the Andes mountains is as clean as the Canadian Arctic, scientists said Friday after hundreds of tests to determine the presence of black carbon deposits or other pollutants.

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