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Earth Day and Ecology

Earth Day is April 22.

Selected Videos - National Geographic

Coastal Cleanup.  Each year, hundreds of thousands of volunteers gather to clean up coastlines around the world.

Coral Reefs.  Coral reefs are the foundation of many marine ecosystems—and they are in danger.

What You Do Counts.  It's our actions that decide how much of the greenhouse gas, CO2, we create. It's what you do that counts.

Selected Environmental Science Videos - Library of Congress

Selected webcasts from the Library of Congress:

Last updated on Jun 27, 2025 1:03 PM