University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Friday, November 20th 2015
2:30 pm:
Speaker: Katsumi Matsumoto, Geology, U of Minnesota
Subject: Global Carbon Cycle and Climate Change

Global climate is undergoing change now. In the geologically recent past, global climate has experienced large swings as ice sheets waxed and waned, causing global sea level to fluctuate by ~120 m. These changes are accompanied by significant changes in the CO2 content of the atmosphere, indicating a close but incompletely understood link between CO2 and global climate. It is also unclear why and how atmospheric CO2 can vary naturally by as much as it did in the recent past. This presentation will explore these issues and attempt to put the ongoing climate change in perspective.

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