Arctic sea ice has large effects on the global climate. By cooling the planet, Arctic ice impacts ocean circulation, ...

From Hudson Bay to the Chukchi Sea, meet 19 polar bear groups and the people racing to protect them as ice disappears.

Despite rapid warming in Svalbard, polar bears have shown increased weight since 2000, possibly due to easier seal hunting ...

Arctic sea ice helps cool the planet and influences weather patterns around the world, but it is disappearing faster than ever as the climate warms. Scientists have now developed a new forecasting ...

Arctic sea ice has long been one of the planet’s most sensitive climate barometers, but until now scientists have struggled ...

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

With the departure of the research vessel Polarstern from Punta Arenas (Chile) scheduled for this weekend, the "Summer ...

The bears have not lost weight over the past 20 years in the Norwegian archipelago, despite the region's accelerating warming. Among the reasons: They hunt prey other than seals, such as reindeer and ...

A population of bears in Norway’s Arctic is confounding scientists’ expectations, getting fatter and healthier even as the sea ice melts rapidly.

Polar bears of the Svalbard archipelago have surprised scientists by growing fatter, despite shrinking sea ice, with one ...

Craig Stevens receives funding from the NZ Ministry for Business, Innovation and Employment and its Strategic Science Investment Fund, and the Antarctica New Zealand Antarctic Science Platform. He is ...