Denis Hayes speaks Earth Day 2017

Published On: April 23, 2017

Denis Hayes left Harvard after being selected by Senator Gaylord Nelson to organize the first Earth Day. https://en.wikipedia.org/wiki/Denis_Hayes#Earth_Day

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About the Author: Chris Machens

Chris Machens
Chris covers the climate since 2011, and when not posting articles to the site he usually works on our next video production.
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