In 1970, 20 million Americans took to the streets to spread the message of environmental awareness, and in the process created the first ever Earth Day. To honor what has become a global observance, a new Google Doodle has been created for Earth Day...
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All About Earthday By Senator Gaylord Nelson, Founder of Earth Day 本文作者为“地球日”的创办人盖洛.尼尔生 What was the purpose of Earth Day? How did it start? These are the questio...
