The late Sen. Gaylord Nelson (D) of Wisconsin organized the first Earth Day in 1970 after the devastating oil spill off the coast of Santa Barbara, Calif. The event started as an environmental teach-in, with some 20 million Americans taking part on college campuses across the United States. Today, 500 million people in 175 countries observe Earth Day on April 22 as a way to celebrate the natural world and raise awareness of the environment. How much do humans affect the earth?
I was seven years old living at the Great Lakes Naval Base when I participated in the first Earth Day activities, and been happily labeled a enviromentalist ever since. Where were you?