Receding glaciers causing rivers to suddenly disappear

4th May, 2021

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The mouth of the Alsek River is forecast to shift 20 miles south from its current location in Glacier Bay national park and preserve in Alaska. Photograph: Nasa Earth Observatory


As glaciers around the world recede rapidly owing to global warming, some communities are facing a new problem: the sudden disappearance of their rivers. River piracy, or stream capture, is when water from one river is diverted into another because of erosion or, in this case, glacier melt.

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