Earth Day Facts: When It Is, How It Began, What to Do

National Geographic by John Roach | Apr. 21, 2009 (Special Report)

From not-so-humble beginnings in 1970, when 20 million participated across the U.S., Earth Day has grown into a global tradition, with a billion expected to take part in 2009. Find out when it is, how it started, how it's evolved, and what you can do. Full Story »

Posted by Kristin Gorski

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Kristin Gorski
3.4
 by Kristin Gorski - Apr. 21, 2009

Features some solid basic facts about Earth Day's beginnings. Most compelling are the pictorials which link from within the article: they present a rich visual history of Earth Day from 1970 and include interesting details and anecdotes about the day and the environmental movement in the U.S. and worldwide.

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