Earth Day at 50 (from "1980s Environmentalism")

On April 22, 1970 millions of people around the world participated in a day of activism to promote better care for the environment. For 50 years, Earth Day has promoted principles like sustainable energy and greenhouse gas reduction, despite highs and lows in environmental federal policy. Denis Hayes is the founder of the Earth Day Network and was the first national organizer of the event in 1970. Ed talks with Hayes about the momentum Earth Day sparked in the 1970s and how things shifted with the Reagan administration in the 1980s.