Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Tens of millions of people are in the path of a major winter storm. Federal cuts threaten efforts to understand the causes of such weather.

A vast pool of Arctic air is again spilling south, the kind of outbreak that can turn highways into morguish car lots and ...

The frigid temperatures, massive snow and deadly ice storm taking shape east of the Rockies might seem to conflict with life on a rapidly warming planet. But all of these things still happen, even ...

Climate change in Earth's polar regions is emerging as an underrecognized driver of global health risks, with consequences reaching far beyond the Arctic and Antarctic, researchers argue. Subscribe to ...

The changing climate poses a major threat to polar bear survival. But new research suggests that rising temperatures may be altering polar bear DNA in ways that help them adapt and endure in ...

The species is adapting to warmer temperatures ...