Air quality remains poor in parts of Canada as wildfire smoke travels along the jet stream — with Europe now in its path.

Canada is battling more than 700 active wildfires across the country, roughly two-thirds of which are burning out of control, ...

“Air quality and visibility due to wildfire smoke can fluctuate over short distances and can vary considerably from hour to ...

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

A stretch of northern Ontario remains under a special air quality statement amid smoke from wildfires burning in parts of the ...

A stretch of southern Ontario remains under a special air quality statement today amid smoke from wildfires burning in parts ...

On Monday morning, Environment Canada issued a special air quality statement for the vast majority of southern Ontario, ...

A stretch of southern Ontario remains under a special air quality statement today amid smoke from wildfires burning in parts ...

Environment Canada has issued special air quality statements for southwestern Ontario as Prairie wildfire smoke sits over ...

Wildfire smoke from the Prairies has prompted a special air-quality statement over much of northern Ontario Saturday.