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.

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

Large parts of the United States and Canada are in the grip of frigid winter weather, with a surge of polar air pushing subzero temperatures and dumping snow down over much of North America. The US ...

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 ...

The Arctic is warming faster than anywhere else on the planet, and as a result, sea ice in the Arctic Ocean is decreasing. Sea ice loss has far-reaching effects on the planet because the ice helps ...

The polar vortex, a pattern in the Arctic region, is causing extreme cold weather in the US and Europe. Despite this, the world is warming, with January setting a monthly heat record. Climate change ...

Understand how extreme cold events are changing due to climate change and what this means for our winters ahead.

A meteorologist debunked a dangerous myth about the polar vortex that's often used to spread disinformation about climate science.

developed and issued two guiding documents to serve as roadmaps for this effort: the 2022 National Strategy for the Arctic ...