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Skyscraper-Size Ice Structures Discovered Base of Greenland Ice Sheet

2014-06-16 18:01:00| Climate Ark Climate Change & Global Warming Newsfeed

Environment 360: Melting and refreezing at the base of the Greenland ice sheet has created massive, complex structures the height of skyscrapers and the width of Manhattan, according to research published in Nature Geoscience. The hidden formations more than a mile below the surface stand in stark contrast to the nearly flat, smooth exterior of the ice sheet and may accelerate its flow toward the sea, researchers say. Scientists had previously interpreted the irregular topography at the base of the ice as hills or...

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Vast ice structures discovered beneath Greenland ice sheet

2014-06-16 16:39:00| Climate Ark Climate Change & Global Warming Newsfeed

Blue and Green: Far beneath the flat, tranquil surface of northern Greenlands ice sheet, scientists have discovered vast ice structures as tall as skyscrapers and as wide as the island of Manhattan. The formations are caused when ice at the base of the glacier melts and refreezes over hundreds of years, in a process that may be quickening the glaciers slide into the sea. Using radar from airborne surveys, researchers found that the structures, which cover about a tenth of northern Greenland, are made not...

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Frozen underworld discovered beneath Greenland ice sheet

2014-06-15 19:16:00| Climate Ark Climate Change & Global Warming Newsfeed

Guardian: Scientists have discovered a frozen underworld beneath the ice sheet covering northern Greenland. The previously unknown landscape, a vast expanse of warped shapes including some as tall as a Manhattan skyscraper, was found using ice-penetrating radar loaded aboard Nasa survey flights. The findings and the first images of the frozen world more than a mile below the surface of the ice sheet are published on Sunday in the journal Nature Geoscience. Scientists said the findings could deepen...

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Belgian, Canadian first to circle Greenland ice sheet

2014-06-13 15:22:00| Climate Ark Climate Change & Global Warming Newsfeed

Reuters: A Belgian and a Canadian have became the first people to circle the Greenland ice sheet, covering an Arctic record 4,000 kilometres (2,485 miles) in 55 days by using kites to pull their sleds and skis. Belgian adventurer Dixie Dansercoer, who also set a record for the longest unaided expedition in Antarctica in 2012, and Canadian Eric McNair-Landry used the typical polar wind patterns to set out a circular route to cover the longest distance. "It was a first because people never thought of...

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