Science Bulletins: PETM - Unearthing Ancient Climate Change


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Added: Saturday, July 29th, 2017
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Science Bulletins: PETM - Unearthing Ancient Climate Change

Fifty-five million years ago, a sudden, enormous influx of carbonflooded the ocean and atmosphere for reasons that are still unclear toscientists. What is clear is that as atmospheric CO2 content increased,the average global surface temperature rose 5C to 9C (9F to 16F).The Paleocene-Eocene Thermal Maximum (PETM), as this global warmingevent is known, lasted upwards of 170,000 years and had dramatic impactson living things both on land and in oceans. In this feature, a team ofpaleontologists, paleobotanists, soil scientists, and other researcherstake to the field in Wyoming’s Bighorn Basin to document how theclimate, plants, and animals there changed during the PETM. Their workwill help predict how our current global warming event could affect lifeon Earth.

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