A provincial legislator says a massive wildfire that has forced the evacuation of two northern Ontario First Nations is like ...

Much of Switzerland awoke last Sunday beneath a blanket of smog. The skies have since cleared somewhat, but the air remains ...

Three American TV weather presenters say their viewers’ appetite is soaring for information on the swaths of wildfire smoke ...

There were no air quality alerts across the U.S. early Friday, following a flurry of warnings partly linked to wildfires in ...

Clear, sunny skies could be rare this summer, as smoke from Canadian wildfires flows into the Northeast, according to ...

Smoke from Canadian wildfires drifted down heavily into Montana on Wednesday and Thursday, covering a large swath of north-central Montana.

WINNIPEG, Manitoba (Reuters) -World leaders may face smoke warnings when they gather next week in Alberta as wildfires burned ...

Wildfires are forecast to continue and expand through the summer in Western Canada and parts of the country’s north.

Officials at Cleveland Department of Public Health are keeping an eye on local threats to the region’s air quality, including ...

Once the smoke rises high enough into the atmosphere, strong winds can carry it across regions, allowing smoke from Canadian ...

PFAS found in Great Lakes mussels, Canadian wildfire smoke affects Midwestern summer skies, coal plant order costs Midwest ...

Toxic air spreads hundreds or even thousands of miles from where wildfires burn. Last week, Chicago felt the sting—and ...