Smoke spreading from wildfires in Canada was affecting air quality in multiple states on Tuesday.Parts of Minnesota, Iowa and ...

Satellite imagery and maps show the large-scale impact of the blazes, which have now burned at least 3.4 million acres.

Wildfires burning in Canada's oil-producing province of Alberta have reduced the country's daily crude production by about 7% ...

The pull of the foul air to Northern California was significant enough that the Bay Area Air District issued an air quality ...

Minnesota, Wisconsin, Iowa and parts of Nebraska and Michigan were under air quality alerts on Tuesday, with advisories for ...

The air quality is reaching dangerous levels in parts of the Upper Midwest and north central U.S., where copious amounts of ...

Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest.

Environment and Climate Change Canada has issued warnings and special air quality statements due to wildfire smoke for areas ...

Smoke from the Canadian wildfires continues to bring dangerous air quality to parts of the northern U.S., with hazy and smoky skies also possible for the East and South.

The National Weather Service says that while skies may be hazy, wildfire smoke should remain aloft. Air quality at ground ...

Fire Crew 30 is a professional hand crew that responds to wildfires, specialized in constructing handlines and executing ...