Parts of Canada are about to experience extreme cold thanks to a polar vortex. But what is a polar vortex? CBC Kids News ...

Environment Canada has issued weather warnings for most of Canada over a 'high or moderate impact level' cold blast that is ...

Watch as a massive bowl of Arctic air is set to bring extreme, potentially record-breaking cold temperatures to parts of the ...

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside.

North America is in for extreme winter weather as a polar vortex collapse is expected to bring freezing temperatures and ...

What is the polar vortex? It’s a wintertime mainstay capable of flooding Canada with some of the world’s coldest air ...