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04-07-2012, 03:13 AM
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Obama Embraces National Security as Campaign Issue
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09-24-2014, 10:25 PM
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Greenland's 'dark snow' climate threat worse than thought
 Scientists studying the ice in Greenland say one of the factors causing it to melt — black soot that absorbs heat from the sun — is much worse than they thought, and could contribute to the global rise in sea levels.More...
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