Rising Carbon Dioxide Levels at End of Last Ice Age Not Tied to Pacific Ocean, as Had Been Suspected
Monday, October 3, 2011 - 16:30
in Earth & Climate
After the last ice age peaked about 18,000 years ago, levels of atmospheric carbon dioxide rose about 30 percent. Scientists believe that the additional carbon dioxide---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.
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