Fate of the Caspian Sea

Threatened by pollution and climate change, the future of Earth’s largest inland body of water is in the hands of five bordering nations.

Pole Watchers

Projected slowdown of ozone loss by the end of the current decade can be seen as a first sign of ozone recovery

ocean

Rising Waters

Human activity is behind mounting sea levels.

Great Basin bristlecone pine

Fine Times for Pines

Climate change sends the growth of ancient trees into overdrive.

sea stars

Rising Stars

Sea stars grow faster in warmer, acidified water.

storm

Stormy Weather

An Internet guide to extreme weather

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Recent Stories

By the 1920s, California had lost all of its grizzly bears—once considered a distinct species and an emblem of the state.

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