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Huge chunk snaps off storied Arctic ice shelf
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| Contributor | kal |
| Last Edited | kal Jul 30, 2008 04:15am |
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| Category | General |
| Media | Newspaper - Toronto Globe and Mail |
| News Date | Wednesday, July 30, 2008 10:00:00 AM UTC0:0 |
| Description | A four-square-kilometre chunk has broken off Ward Hunt Ice Shelf - the largest remaining ice shelf in the Arctic - threatening the future of the giant frozen mass that northern explorers have used for years as the starting point for their treks.
Scientists say the break, the largest on record since 2005, is the latest indication that climate change is forcing the drastic reshaping of the Arctic coastline, where 9,000 square kilometres of ice have been whittled down to less than 1,000 over the past century, and are only showing signs of decreasing further.
"Once you unleash this process by cracking the ice shelf in multiple spots, of course we're going to see this continuing," said Derek Mueller, a leading expert on the North who discovered the ice shelf's first major crack in 2002.
Dr. Mueller was part of a team monitoring ice along the northern coast of Ellesmere Island last April that discovered deep new cracks - 18 kilometres long and 40 metres wide - on the edge of Ward Hunt Ice Shelf, a 350-square-kilometre mass of ice that joins tiny Ward Hunt Island to the bigger Ellesmere. The cracks indicated a split was likely coming.
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