US politician Gaylord Nelson was awarded America’s highest civilian
honour –the Presidential Medal of Freedom –for starting what global
event that saw its 50th anniversary on 22 April 2020?
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Celebrated annually on April 22, Earth Day encourages environmental education and stewardship of natural resources. In honor of Earth Day's 50th anniversary, the Earth Day Network has selected “climate action” as this year's theme. It's fitting that National Park Week is also celebrated during this time (April 18-26).
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