Earth Day celebrates the many things that we can all do to help keep the Earth clean and healthy. Students will learn the story behind the first Earth Day in 1970, the great idea of U.S. senator Gaylord Nelson, and the increasing support that this special day has received since then. Discover some different ways to celebrate Earth Day -- from recycling to composting to planting trees. Are you doing your part to conserve energy and natural resources? Get inspired by Rachel Carson, an environmental hero, and then discover the greatest thing about this holiday -- it can be celebrated every day! 23 minutes. Closed-captioned.