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

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

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

The Bay Area Air District on Sunday morning issued an air quality advisory due to possible wildfire smoke from Canada and ...

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

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

Smoke continues to billow over a northern Manitoba community Thursday where crews are monitoring area hotspots from above, ...

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

The worst wildfires in decades are tearing through Saskatchewan, Canada, and at least two people have been killed in blazes in the neighboring province of Manitoba. Smoke from those fires has ...

Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S., turning skies a murky orange hue and forcing sensitive groups indoors.. In New York, the smoke could ...

Smoke from Canadian wildfires is drifting into Alaska, prompting an air quality advisory. Conditions may worsen overnight; ...

Dry conditions in Canada start a chain of events that exacerbates wildfires, injects plumes of smoke in the air and affects air quality in Milwaukee.