A new study challenges the idea that climate change is behind the erratic wintertime behavior of the polar jet stream, the ...

Rapid changes from wet to dry weather can create severe natural disasters. And these precipitation whiplash events are ...

The polar vortex is coming—and raising the odds for intense winter weather. In the stratosphere over Siberia, temperatures recently jumped nearly 100 degrees Fahrenheit, shoving the polar vortex ...

Extreme heat warnings stretched from Windsor to Timmins; humidex values climbed to the mid-40s. In Toronto, panic over ...