Sources and Sinks: What drives long-term climatic trends?

Posted by on March 14, 2019 10:25 pm
Categories: Top News

For the entire history of our species, humans have lived on a planet capped by a chunk of ice at each pole. But Earth has been ice-free for about 75 percent of the time since complex life first appeared. This variation in background climate, between partly glaciated and ice-free, has puzzled geologists for decades.

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