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https://www.britannica.com/story/celebrate-earth-day

Celebrate Earth Day

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Written by
Alison Eldridge
Alison Eldridge was Managing Editor at Encyclopaedia Britannica.
Alison Eldridge
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The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
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Earth Day. Environmentalism. Girl writes on globe and participate in the 2008 Earth Day event at Seoul City Hall on April 20, 2008 in Seoul, South Korea. UN Earth Day, vernal equinox, environmental movement, sustainability
© Chung Sung-Jun/Getty Images News

This year marks the 45th annual celebration of Earth Day, observed on April 22 in the United States and elsewhere around the world. Earth Day is a time to acknowledge the achievements of the environmental movement and to raise awareness of ecological sustainability.

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