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Ohio State University ice scientist Jason Box has been monitoring Greenland, where he said temperatures have sometimes been 9 to 18 degrees warmer than normal this summer and the ice is reflecting far less heat _ and thus absorbing more energy _ than ever before.

Global warming physics for years has been saying if greenhouse gases are causing climate change, the Arctic will feel it first with loss of sea ice and melt in snow and ice on land, Box said.

“We’re in a declining trend because the Earth is getting warmer,” Scambos said. “It’s going to continue to be a series of shrinking ice extents year by year… We’re not going back.”

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Online:

National Snow and Ice Data Center: http://nsidc.org/arcticseaicenews/

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Seth Borenstein can be followed at http://twitter.com/borenbears

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