10 Earth Day Facts You Didn't Know – Environment – Treehugger

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Do you celebrate Earth Day? There are a few things you probably don't know about this global environmental celebration.
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In 1970, U.S. Senator Gaylord Nelson was looking for a way to promote the environmental movement. He proposed the idea of "Earth Day." His plan included classes and projects that would help the public understand what they could do to protect the environment. 
The first Earth Day was held on April 22, 1970. The holiday has been celebrated on this day every year since.
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It’s true. A massive oil spill in Santa Barbara, California inspired Senator Nelson to organize a national “teach-in” day to educate the public about environmental issues. 
Courtesy of the University of Michigan School for Environment and Sustainability
After his election to the Senate in 1962, Nelson began trying to convince lawmakers to establish an environmental agenda. But he was repeatedly told that Americans were not concerned about environmental issues. He proved everyone wrong when 20 million people came out to support the first Earth Day celebration and teach-in on April 22, 1970.
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When Nelson began planning the first Earth Day, he wanted to maximize the number of college kids who could participate. He chose April 22, as it was after most schools had spring break but before the mayhem of finals set in. It is also after both Easter and Passover. And of course, it didn’t hurt that the date is just one day after the birthday of late conservationist John Muir.
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Earth Day may have originated in the U.S., but today it is a global phenomenon celebrated in almost every country around the world.
Earth Day's international status owes its thanks to Denis Hayes. He is the national organizer of Earth Day events in the U.S. In 1990, he coordinated similar Earth Day events in 141 countries. More than 200 million people around the world took part in these events.
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In celebrations that included 5,000 environmental groups and 184 countries, the focus of the millennial Earth Day celebration in 2000 was climate change. This mass effort marked the first time that many people heard of global warming and learned of ​its potential side effects.
To celebrate Earth Day in 2011, 28 million trees were planted in Afghanistan by the Earth Day Network as part of their "Plant Trees Not Bombs" campaign.
On Earth Day in 2012, more than 100,000 people rode bikes in China to raise awareness about climate change. Biking showed how people can reduce carbon dioxide emissions and save fuel burned by cars.
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In 2013, Indian poet and diplomat Abhay Kumar wrote a piece called the "Earth Anthem" to honor the planet and all of its inhabitants. It has since been translated in all of the official UN languages, including English, French, Spanish, Russian, Arabic, Hindi, Nepali, and Chinese.
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In 2016, more than 1 billion people in almost 200 countries around the world participated in Earth Day festivities. The theme of the celebration was "Trees for the Earth," with organizers focusing on the global need for new trees and forests. 
To celebrate the 50th anniversary of Earth Day, the Earth Day Network set a goal to plant 7.8 billion trees globally by 2020 through the Canopy Project.
"1969 Oil Spill." University of California. The Regents of the University of California, Santa Barbara, 2018.
"John Muir." National Park Service. U.S. Department of the Interior, May 13, 2018.
"The Canopy Project." Earth Day Network, 2019, Washington, DC.
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