Michael Mann at Science March “Policy based on Scientific Evidence!”


Climate State

Published on Apr 22, 2017

On Earth Day, April 22, Penn State’s Michael Mann spoke in front of the large crowd of the March For Science in Washington DC. The official March For Science website https://www.marchforscience.com The Madhouse Effect: How Climate Change Denial Is Threatening Our Planet, Destroying Our Politics, and Driving Us Crazy https://www.amazon.com/Madhouse-Effec…

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