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Earth Day was first observed in 第1页 /总页数 1 页
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Earth Day was first observed in Spring of 1970. An estimated 20 million people nationwide attendedfestivities out of which came the largest grassroots environmental movement in . history, and the impetus for national legislation like the Clean Air and Clean Water Acts. By the twentieth anniversary of that event, April 22, 1990, more than 200 million people in 141 countries participated in Earth Day celebrations.
Former US Senator Gaylord Nelson, Earth Day's cofounder, modeled Earth Day on antiVietnam War demonstrations, called "teachins," that were common on college campuses. "At a conference in Seattle in September 1969, I announced that in the spring of 1970 there would be a nationwide grassroots demonstration on behalf of the environment," says Nelson. "The response was elec