Space/Science — HabitableZone

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"The Ellesmere ice shelf reduced by 90 percent in the twentieth century due to global warming, leaving the separate Alfred Ernest, Ayles, Milne, Ward Hunt, and Markham Ice Shelves.[8] A 1986 survey of Canadian ice shelves found that 48 square km (3.3 cubic kilometers) of ice calved from the Milne and Ayles ice shelves between 1959 and 1974.[9] The Ward Hunt Ice Shelf, the largest remaining section of thick (>10 m) landfast sea ice along the northern coastline of Ellesmere Island, lost 600 square km of ice in a massive calving in 1961-1962.[10] It further decreased by 27% in thickness (13 m) between 1967 and 1999.[11]

The breakup of the Ellesmere ice shelves has continued in the twenty-first century: the Ward Ice Shelf experienced a major breakup during summer 2002; [12] the Ayles Ice Shelf calved entirely on August 13, 2005; the largest breakoff of the ice shelf in 25 years, it may pose a threat to the oil industry in the Beaufort Sea. The piece is 66 km² (25 mi²).[13]"

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