Harvard scientists are helping show the fullest picture of how global spikes in carbon dioxide (CO2) combined to finish off the last ice age 20,000 to 10,000 years ago.
Researchers compiled ice and sedimentary core samples collected from dozens of worldwide locations, and found evidence that while changes in Earth’s orbit may have touched off a warming trend, increases in CO2 played a far more important role in pushing the planet out of the ice age.
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