The Colorful History of Earth Day

The Colorful History of Earth Day For 39 years, activists have gone to great lengths to draw attention to the planet's environmental needs
AP

Stop and Smell the Magnolias?
Earth Day has been marked on April 22, every year since 1970. In that year, students gathered at colleges and universities around the United States to raise awareness of widespread environmental degradation. This young man participated in the event held near Pace University in New York.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.