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The vast expanse of permanent ice that has characterized the Arctic Ocean for millennia is fated to disappear far faster than anyone imagined, and will certainly be gone before the century is out, says a NASA satellite study. The cause of all this warmth, said Tom Agnew, a research meteorologist with the Meteorology Service of Canada, is linked to the greenhouse gas emissions that humans are pumping into the atmosphere as they burn fossil fuels. -- source Globe & Mail/Canada