Earth Day Pioneer Looks Back on 4 Decades of Environmentalism

Denis Hayes dropped out of Harvard's Kennedy School in 1970 to help organize the first Earth Day—an event that mobilized more than 20 million Americans and helped pave the way for the establishment of...



Photo Credit: AP



via NBC New York - Top Stories http://www.nbcnewyork.com/news/national-international/NATL-Earth-Day-Pioneer-Looks-Back-on-4-Decades-of-Environmentalism-203611561.html