The polar vortex has broken, and severe temperatures are set to dominate most of the country in the coming days. Temperatures in the 10s are forecast for much of the Northeast, and subzero ...

A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a Polar vortex actually is, and the dangers — like frostbite — such ...

Multiple states registered subzero temps on Friday, Dec. 5. The polar vortex has broken, and severe temperatures are dominating even in southern sates like Texas, which saw record breaking lows in the ...

Meet our story’s protagonist: a female polar bear. Displaced by shrinking sea ice in the Arctic, she was forced to wander south, deeper into the Canadian Northwest Territories. Here, our lady in white ...

Polar bears in one of the fastest-warming parts of the Arctic are showing clear changes in how their DNA behaves, according to a new study. Researchers examined genetic activity in polar bears from ...

This study was funded by grants from the Natural Environment Research Council (NE/S011188/1) and the European Research Council (SELECTHAPLOID - 101001341) The Arctic Ocean current is at its warmest in ...

Three polar vortex systems are expected to bring frigid temperatures to several states in December. The first wave of Arctic air is anticipated this week, with two more to follow in the coming weeks.

Milwaukee is in for a frigid and snowy December, thanks to several polar vortex systems that will sweep through the United States in the coming weeks. A polar air mass from Canada is hovering over ...

The polar vortex is so back, and in some parts of the country, the weather system will bring with it up to a foot of snow. If “polar vortex” is giving you déjà vu, that’s because we’ve heard it before ...

Grab your coats, it's getting chilly. A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the coming days. The polar vortex will ...

The world’s polar bear population is projected to decline by two-thirds by 2050. A new study from the University of East Anglia suggests that polar bears are undergoing rapid genetic changes, and ...