A Glimpse into the Arctic's Grim Future | Digital Extra

0:04:00 | Clip
The Stauning Alps, at the very edge of Greenland's ice sheet, are home to countless glaciers. It’s the frontline of a global catastrophe. Fifty years ago, much of this valley was covered by a glacier, but it’s receding rapidly. Steve and the Expedition crew see first-hand climate change's massive impact on Greenland's glaciers.

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