Key Vocabulary
Earth Day is celebrated every year on April 22. Learn more about the history of this holiday.
Earth Day is celebrated every year on April 22. Learn more about the history of this holiday.
All things on Earth are connected. Everything you see –from clouds and trees to the tiniest of insects– has evolved over millions of years. Our existence depends on a delicate balance that we must help to maintain. That's why every year, on April 22, millions of people celebrate Earth Day.
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