Smoke from raging wildfires in Canada is causing air quality alerts to blanket the Midwest. Lissette Nuñez is live from Chicago's Lollapalooza music festival.

Blazes across several Canadian provinces and territories pose health risks to Canadians and their southern neighbours.

The National Weather Service offices in Gray and Caribou are monitoring air quality and other impacts from the thick smoke.

For the full 24 hours of Aug. 3, the New York State Department of Environmental Conservation is issuing an air quality health ...

Wildfire smoke from the Prairies is drifting towards the Greater Toronto Area, prompting Environment Canada to issue a ...

Environment Canada has issued special air quality statements for multiple regions across northeastern Ontario and beyond.