What is Earth Day?
In 1970 smog choked major U.S. cities and toxic waste flooded rivers. That same year nearly 20 million Americans participated in events on April 22, spearheaded by Wisconsin Senator Gaylord Nelson, to draw attention to the environmental issues plaguing the planet and human health. Named Earth Day, April 22 has remained a time to celebrate restoration and stand up for the planet.
Earth Day
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Concert: Ben Harper With Relentless7
Watch the Nat Geo Music channel on Earth Day as Ben Harper plays a live tribute to the planet from Rome's famed Piazza del Popolo.
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Earth Day Facts: When It Is, How It Began, What to Do
From 1970, when 20 million participated across the U.S., Earth Day has grown into a global tradition, with a billion expected to take part in 2009.
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Game: Plan It Green
How well can you create an eco-friendly town? As the mayor of Greenville, the future of your hometown is in your hands. Step up to the challenge!
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National Geographic Channel: The Garbage Moguls
Watch recycling get a makeover by a quirky group of young eco-capitalists.
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Earth Day Rx
Our health is intimately connected with the world around us. Read our tips for taking care of both.
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Photos: Quirky Ways to Mark the Day
See how people around the world have expressed their love of and concern for the planet.
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Photos: An Artist's Take on Big Ocean Threats
New photomosaics reveal how much plastic ends up in the planet's oceans.
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Quiz: Going Green
From PV cells to CFLs, there's a lot you can do to help reverse global climate change and live a more ecofriendly life. Take this quiz and see what you know about "going green."
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Special Report: Energy
Our planet is threatened by humanity's bond with fossil fuels. This special issue of National Geographic explores the challenge ahead.
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Special Report: Climate Change
Learn about the signs and science of climate change—and some solutions—in this special issue from National Geographic.
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Quiz: The Dirty Dozen
Are you in the clear or a bit murky when it comes to your knowledge of pollution? Take this quiz to find out.
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Photos: Arctic Climate Change
Rising global temperatures are having a devastating effect on the Arctic landscape and wildlife. See how the changes are unfolding.
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Preserve Our Planet
Watch videos about our changing world. Share your passions for conservation and discuss issues related to preserving the planet.
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Buying Guides
Looking for an energy-efficient washing machine? Want to know what ingredients to avoid in shampoos? Get more information from our guides.
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Environment News
Get the top photos and news of the week from National Geographic News.
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Interactive
Beef Label DecoderUse our interactive label decoder to find your way in the murky world of certifications and ingredients.
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Buying Guide
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Quiz
OceansLearn how you can help protect the big blue.
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TAKE QUIZ
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PHOTO CONTEST
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