Wildfire smoke from a series of blazes burning in the Canadian prairie has drifted across New York, contributing to a series ...

Smoke spreading from wildfires in Canada​ was affecting air quality in multiple states, including Minnesota​ and Wisconsin.

Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida.

Canada's wildfires, which have already forced evacuations of more than 26,000 people, continued their stubborn spread Tuesday ...

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 smell of fire filled the air as thick smoke from wildfires in Canada blanketed part of the Midwest and created hazardous ...

Parts of the Upper Midwest were under air quality alerts on Tuesday. The New York City region is expected to be at risk on ...

Parts of Canada and the US received alerts for hazardous air quality as hundreds of wildfires spread throughout Canada, ...

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

Haze from Canadian wildfires is seen over Lake Michigan as a person runs along the shoreline Monday in Chicago. Wildfires ...

Air quality alerts stretch from Alberta to parts of northern Ontario, according to Environment and Climate Change Canada, with some U.S. states also seeing advisories.