Smoke from an unusually high number of more than 400 wildfires in Canada is drifting across the U.S. border, turning skies hazy over the Midwest and Eastern states and forcing Americans to take ...

Smoke from wildfires in Canada continues to cause poor air quality, haze and low visibility in the Ohio Valley Region. On Tuesday, the Southwest Ohio Air Quality Agency issued an air quality alert ...

Dense smoke from Canadian wildfires is drifting across the U.S., canceling flights and sporting events, and threatening severe health problems for millions of Americans. Chicago's air quality now ...

Wildfire smoke from Canada and the Western United States stretched across North America this week, covering skies in a thick haze, tinting the sun a malevolent red and triggering health alerts ...

Some residents in the U.S. are feeling the effects of the wildfires raging across the Canadian border, including poor air quality as a wall of smoke descends from the fires.

A radar graphic shared Tuesday evening showed the insane deluge of smoke drenching the U.S. in August. The graphic spans an area encompassing most of Oregon, parts of Idaho, Northern California ...