A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality ...

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

Toronto anticipates poor air quality this summer due to ongoing wildfires. Ontario faces a significant increase in fire ...

Many fires burning across Canada, forcing evacuations and threatening air quality in the United States, cannot simply be put out, authorities and experts say.

Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with ...

Environment and Climate Change Canada has issued warnings and special air quality statements due to wildfire smoke for areas just north of Edmonton all the way to the province's boundary with the ...

Maps show where new plumes of smoke will cause hazy skies through the end of the week. Low-level smoke is forecast to spread eastward Wednesday across the Appalachians and into the Mid-Atlantic and ...

Hamilton, Burlington, Niagara and surrounding areas are seeing smoke from wildfires in Western Canada impact air quality and that is expected to continue until Friday evening, Environment Canada said.

More than 25,000 residents in three provinces have been evacuated as wildfires remained active and diminished air quality in parts of Canada and the U.S.

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for days.