The north-central part of the Prairies remains under a series of air-quality warnings. Environment Canada says wildfire smoke is contributing to the region’s very poor air quality and could cause ...

Rep. Calvin Callahan joined lawmakers from Iowa, Minnesota and North Dakota in filing a formal complaint against Canada over ...

Smoke from wildfires in Canada continue to impact air quality in the northern United States, even in the New York City metro ...

Some smoke from fires in the western United States and Canada is not uncommon in the summer months in the D.C. area.

As smoke begins to dissipate, Michigan's statewide advisories have ended, though some remain for Upper Peninsula and northern ...

The midsummer heat we've got isn’t going anywhere in the near future. Neither is the rainfall deficit, which continues to ...

You may notice a slight haze in the sky on Wednesday across the D.C. area as smoke from Canadian wildfires brushes the region's edge.

A wildfire that has closed the North Rim of Grand Canyon National Park raged out of control over the weekend and is now the ...

A group of lawmakers, including Rep. Calvin Callahan of Tomahawk, is filing a formal complaint against Canada.

Canadian wildfire smoke continues to cause hazy skies and air quality alerts in New Hampshire. The air quality alert, extended through Tuesday night, particularly affects sensitive individuals. Air ...

Air quality alerts are in effect on Tuesday in 10 states as toxic smoke from hundreds of wildfires burning in Canada ...

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.  Air ...