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Last time CO2 hit 400 ppm, temperature was 8C warmer, seas 40m higher than today

2013-05-12 16:22:00| Climate Ark Climate Change & Global Warming Newsfeed

Guardian: Lake sediments recorded the climate of the Arctic during the last period when CO2 levels were as high as today The future of a globally warmed world has been revealed in a remote meteorite crater in Siberia, where lake sediments recorded the strikingly balmy climate of the Arctic during the last period when greenhouse gas levels were as high as today. Unchecked burning of fossil fuels has driven carbon dioxide to levels not seen for 3m years when, the sediments show, temperatures were 8C higher...

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