A group of Republican lawmakers has complained that smoke from Canadian wildfires is ruining summer for Americans, just days ...

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

Six members of Congress from Wisconsin and Minnesota have asked Canada to say how it plans to tackle the blazes and reduce ...

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

The extended forecast suggests unsettled weather midweek, with rain probabilities ranging from 30% to 60%. There is some ...

Smoke from hundreds of wildfires burning in Canada has made its way south of the border again this weekend, filling skies of ...

More than 100 million people are under air quality alerts Friday morning from Wisconsin to Vermont and down to North Carolina as smoke from Canadian wildfires continues to waft south, though ...

As Canada’s wildfire smoke creeps down into the U.S., it’s also transforming. Chemical reactions between gases and sunlight create ozone, which further exacerbates lung conditions like asthma.

Wildfires in Canada are continuing to blanket its southern neighbors in smog, triggering new air quality alerts in the northern high plains, Midwest and Great Lakes, according to the National ...

Item 1 of 4 Smoke billows upwards from the Donnie Creek wildfire (G80280) south of Fort Nelson, British Columbia, Canada June 11, 2023. B.C. Wildfire Service/Handout via REUTERS ...

Smoke rises from hotspots flaring up in the Kimiwan wildfire complex in Northern Sunrise County, Alberta, Canada, June 24, 2023.

As Canada’s wildfire smoke creeps down into the U.S., it’s also transforming. Chemical reactions between gases and sunlight create ozone, which further exacerbates lung conditions like asthma.