Wondering why it smells like smoke outside? Canadian wildfires are impacting millions in Ontario, Minnesota, Toronto, New ...

Wildfires in Canada, the United States and Mexico often send smoke throughout the continent. Follow our latest coverage here.

The smoke pouring into the U.S. made Detroit, Chicago and D.C. among the world's most polluted major cities as of early ...

Wildfire maps have become some of the most consequential documents in American emergency planning. They don't just show where fires have been. They predict where the next catastrophic burns are most ...