Denis Hayes Earth Day 2017 Science March Washington D.C.
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
Climate Scope Compilation Science March Earth Day 2017 Washington DC
Excerpt compilation of the many climate and policy related statements from the Washington D.C. March for Science rally, in front of the White House, Earth Day, April 22, 2017. The official March For Science website https://www.marchforscience.com Full on demand feed can be watched here https://www.youtube.com/watch?v=nNz8GO-d9wI