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Deutsche Welle

The Polar Regions are warming faster than anywhere else in the world as a result of climate change. The vast areas of ice and snow are diminishing and having a widespread effect on human settlements, marine ecosystems and the coastal climate. The habitats and hunting areas for bears in Alaska are also shrinking. This week we hear from Joseph Prouk, a 'bear guard' who stands watch while scientists conduct their research in Alaska.

(Report: Irene Quaile)