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 | Diana Walker, 1978 |
 | President Carter greets the crowd on Earth Day at Riverfront Park in Spokane, Washington. Environmental awareness started increasing in the 1970s, and Carter was the first president to speak at an Earth Day rally. |
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 | The first Earth Day was on April 22, 1970, when 20 million Americans took to the streets and parks to demonstrate for a healthy, sustainable environment. The event—which boasted bi-partisan support—led to the creation of the Environmental Protection Agency and the passage of the Clean Air, Clean Water and Endangered Species Acts. |
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Click below to enlarge photographs:
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