In the atmospheric layer above it, about 10 to 30 miles up, is the stratospheric polar vortex, where every winter a sunlight-starved Arctic spins up a mass of cold air that, ultimately, dissipates ...

A new study challenges the idea that climate change is behind the erratic wintertime behavior of the polar jet stream, the ...

The United States must build a fleet of nuclear-powered icebreakers to counter Russia and China’s advantage in the Arctic.

Extreme heat is only becoming more common. In the United States, heat waves now occur three times as often as they did in the ...

Unless society stops pumping more greenhouse gases in the air, “we can expect multiple factors to worsen summer extremes,” a ...

Climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years and that may explain why long-range computer forecasts keep ...