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.

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 ...

The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March. Currently, its remains are traveling eastward across Canada to the United States.

Chain reaction could unleash cold polar vortex across United States through April Don't put away those coats just yet, weather forecasters tell North Americans By Brian Lada, Accuweather.com ...

AccuWeather Long-range Expert Paul Pastelok said the shifting and stretching of the polar vortex could impact the United States around the middle of March with impacts potentially lingering into ...

The polar vortex is an area of low pressure and cold air that encircles both the Earth’s polar regions, according to the National Weather Service. The Arctic polar vortex and its proximity to North ...

Extreme weather is sweeping across the United States. Last week, the polar vortex peaked, bringing freezing temperatures to much of the country.

The polar vortex has taken on an unexpected pattern this winter — one that’s made part of the United States the most unusually cold place on the planet, at least so far this year.

The polar vortex has taken on an unexpected pattern this winter - one that’s made part of the United States the most unusually cold place on the planet, at least so far this year.

All of this is due to a break in the Polar Vortex. Fortunately, warm air is expected to begin moving in early next week, ...