News From the Field
Rising Carbon Dioxide Levels at End of Last Ice Age Not Tied to Pacific Ocean, As Had Been Suspected
October 3, 2011
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After the last ice age peaked about 18,000 years ago, levels of atmospheric carbon dioxide CO2 rose about 30 percent. Scientists believe that the additional CO2--a heat-trapping greenhouse gas--played a key role in warming the planet and melting the continental ice sheets. They have long hypothesized that the source of the gas was the deep ocean.Full StorySource
University of Michigan
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