The polar vortex usually keeps cold Arctic air confined above the North Pole, but experts believe it is starting to shift and stretch. That disruption could create the conditions for springtime ...

Both of these Arctic blasts are the result of pieces of the polar vortex pinwheeling out of Canada, bringing the coldest air in years to tens of millions of people.

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 ...

Obviously this isn't the first polar vortex episode of the winter, but it looks to be the most severe." FILE - A person walks along the shore of ice covered Lake Michigan, Feb. 13, 2025, in Chicago.

Earth’s major climate goal is too warm for the polar ice sheets, study says If Earth stays at its current levels of warming — below policymakers’ goal of 1.5 degrees Celsius — polar ice ...