April 21, 2020
This was the Introduction to CBS News with Walter Cronkite on the first Earth Day in 1970, courtesy of the earthday.org website.
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It began 50 years ago and each year on April 22 Earth Day has been a day when school children plant a tree or partake in some other activity to celebrate nature. It’s a day marked by people going out and cleaning up parks and streams or the areas around their homes.