The scientists used their data to chart where and when plant species emerged or disappeared across Siberia and Alaska.

It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their migration ritual is changing.

The thawing of 7 trillion tonnes of glacial ice since has raised sea levels by almost 2 centimetres, with the Alps a melting ...

We often see photographs that show how glaciers have diminished in size over the last century. The recession of glaciers is a ...

Sea ice refers to the free-floating ice in the polar regions. While it generally expands during the winter and melts in the summers, some sea ice remains year-round. Note that this is different from ...

Large parts of the United States and Canada are in the grip of frigid winter weather, with a surge of polar air pushing ...

The cloud cover isn't what it used to be, and scientists say it is helping fuel Earth's hottest temperatures on record.

The polar vortex’s icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

Arctic glaciers are leaking significant amounts of methane, a potent greenhouse gas. Gacial melt rivers and groundwater ...

Cold extremes are indeed waning over most of the midlatitude Northern Hemisphere, but a decade-plus debate on the Arctic’s ...