Analysis: Arctic Ice Growth Since 1971: A 1971 National Geographic map shows there is a lot more Arctic sea ice now than there was 42 years ago

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This map overlays current ice extent on the 1971 map, with green representing ice present in 2013 that was not present in 1971, and red representing the opposite.'

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By: - Climate DepotJuly 31, 2013 5:04 PM


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