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PETM VIDEO-ZEEBE

Climate Extremes of our Planet - Richard Zeebe, University of Hawaii, Honolulu.
PETM, 56 mya.

"In this presentation, I will explain basic controls on climate and ocean chemistry on different timescales and will examine past climate aberrations and ocean acidification events focusing on the Paleocene-Eocene Thermal Maximum (~56 million years ago). The results allow evaluation of the current anthropogenic perturbation in the context of Earth’s history. It appears that during the Paleocene–Eocene Thermal Maximum processes and/or feedbacks other than direct CO2 forcing alone caused a substantial portion of the warming. These processes are hitherto unknown but need to be identified in order to evaluate their potential effect on future climate change."

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