Earth Day started as a US ‘teach-in’ 56 years ago. Now it’s a global event

Photo: Earth – April 2, 2026. Photo credit: Artemis II crew member / NASA via Flickr. CC BY-NC-ND 4.0 (no modifications). Article by The Associated Press. AP News – April 21, 2026.

Millions of people around the world will pause Wednesday, at least for a moment, to mark Earth Day. It’s an annual event founded by people who hoped to stir activism to clean up and preserve a planet that is now home to some 8 billion humans and assorted trillions of other organisms. Here are answers to some common questions about Earth Day and how it came to be: […]

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