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The World’s Water Is Running Out of Oxygen, and Scientists Want It Treated as an Emergency
The silent climate threat facing our oceans, lakes, and rivers — and what the science reveals.

The silent climate threat facing our oceans, lakes, and rivers — and what the science reveals.

A building designed to blend into Norway’s Arctic coast, with a walkable roof and sweeping views of the whales just offshore.

Homer’s city lived a second life: a newly excavated Roman street reveals how Augustus turned it into a shrine to Rome’s own origins.

Gone for 70 years, the tiger returns to the wilds of Kazakhstan — with help from its closest living relative.

Aruba has become one of only two island nations in the world with 100% of its territory protected by UNESCO — here’s what it means.

Alligators, ancient cypress trees, and dark skies: why Okefenokee just became the newest UNESCO World Heritage Site in the U.S.