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

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

Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S., turning skies a murky orange ...

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

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

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

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

Smoke poured over the Canadian border into eastern Alaska this weekend, bringing poor air quality to communities from ...

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.

The advisory warns that communities along the eastern border of the state will be most affected as upper and lower-level ...

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

Canada still has time to lead — not just in firefighting, but in foresight. To invest in our forests, respect our waters, ...