A huge 55-square-kilometre ice shelf in Canada's northern Arctic broke away last month and the remaining shelves have shrunk at a "massive and disturbing" rate. These are the latest signs of accelerating climate change in the remote region, scientists said on Tuesday.
They said the Markham Ice Shelf, one of just five remaining ice shelves in the Canadian Arctic, split away from Ellesmere Island in early August. They also said two large chunks totalling 120 square km had broken off the nearby Serson Ice Shelf, reducing it in size by 60%.
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