Expert: Earth Day is turning 50. Here's what the first one was like in 1970
Thursday, January 30, 2020 - 11:40
in Earth & Climate
Earth Day in 1970 wasn't just a demonstration that came and went. It catalyzed the modern U.S. environmental movement, with major legislative victories like the Clean Air Act of 1970, the Clean Water Act of 1972 and the Endangered Species Act of 1973 following.