Climate at a Glance: The Polar Vortex
At Least Two Chicago Residents Are Loving the Polar Vortex
Everything You Need to Know about the Polar Vortex Collapse
EXPLAINER: How warming affects Arctic sea ice, polar bears
Lincoln Park Zoo's latest polar bear frolics in new exhibit space
Polar Vortex Fact & Fiction - CBS Boston
Polar bears scavenge on garbage to cope with climate change
The polar vortex was Chicago's common enemy. And I miss it.
How to Draw a POLAR BEAR. Sketching Wild Animals No 7. Happy