New research shows polar bear encounters often increase due to longer ice-free seasons, not widespread starvation, reshaping ...

NATO has expanded its footprint in the North Atlantic, partially in response to an increased Russian submarine presence.

Oxygen isotope analysis of lunar soil shows meteorites delivered only a limited amount of water to the Earth–Moon system ...

Around the same time as the heat starts blasting Phoenix, the polar vortex — a system that usually keeps frigid air penned up ...

Millions of unknown microbial genes discovered in Antarctica’s ocean reveal a hidden ecosystem that may influence carbon cycling and climate.

The retreat of ice in the Barents Sea could be strengthening a key ocean current that regulates global climate.

Arctic sea ice is headed for one of its smallest winter peaks on record, an AFP review of U.S. data showed Wednesday, as ...

Once you’ve explored Europe’s grand cities, turn your attention to its untamed landscapes, where you’ll find secluded coves, ...

Arctic sea ice is headed for one of its smallest winter peaks on record, an AFP review of US data showed Wednesday, as ...

The Denmark Strait waterfall is over three times taller than Angel Falls. Its cold, dense water drives ocean currents, sustains marine life and regulates climate globally.

A colossal underwater waterfall between Iceland and Greenland dwarfs every waterfall on land and plays a hidden role in Earth’s climate system.

From coral reefs and sinking cities to vanishing glaciers and disappearing islands, this guide explains what’s putting 17 iconic places at risk—and how travelers can reduce harm through smarter timing ...