Christina Pazzanese

Earth Day 1970
Good News

How Earth Day gave birth to environmental movement

Denis Hayes, one of the event's founders, recalls the first and how its influence spread.

Denis Hayes was a 25-year-old student at Harvard Kennedy School in 1969 but dropped out after a semester to become a principal organizer of a grass-roots nonprofit that planned a nationwide rally on April 22, 1970, an event they would call Earth Day.

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