CODY, Wyo. (AP) — As the planet enters a new phase of climate change, scientists in two countries are working with core samples drilled in Wyoming to understand what caused a pattern of runaway warming, sometimes called the “fever period,” 56 million years ago.
For reasons unknown, during the transition between the Paleocene and Eocene epochs, a sudden surge of carbon dioxide into the atmosphere prompted an extreme version of global warming, producing droughts and floods, widespread species extinctions and a redistribution of planetary life.
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