Earth Matters

In a first, renewables generated more electricity in the U.S. than coal for a month

The Ozark chestnut, thought to be long gone, is making a comeback

Why some cats hate belly rubs

Huge freshwater aquifer found under the ocean

A new material that's part plastic and part rock is forming on this Portuguese island

Giant squid caught on camera in U.S. waters

Boyan Slat's Ocean Cleanup project relaunches

How to identify a tree by its bark

After 14 months without tourists, Kauai's North Shore tests the waters again

The controversy behind the world's next great telescope

This newly identified critter eats rocks and secretes them as sand

Strange wave-shaped clouds roll across Mount Pisgah

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