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 ...

On Aug. 6, the Wisconsin Department of Natural Resources has not extended its Wisconsin air quality alert — a decision it ...

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

A number of states in the United States have declared air quality warnings with concerning levels noted across many of the ...

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

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 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 ...

The scale and intensity of the fires have had transboundary effects. Smoke from the blazes has drifted across the border into ...