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, ...

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

Having breathing trouble today? Canadian wildfire smoke is drifting across Ohio today, dropping the air quality in parts of ...

Wildfire smoke from Canada has prompted officials to place the Lehigh Valley and surrounding counties under an air quality ...

The thick plumes of smoke in Canada are being driven southward into the U.S. by northerly winds on the backside of an area of high pressure.

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

Environment Canada has lifted special air quality statements for southwestern Ontario as Prairie wildfire smoke dissipates.

On Tuesday morning, New York City had the ninth-worst air quality in the world, thanks in large part to the wildfire smoke ...

Red flag warnings remain in place for parts of Nevada, Utah, Colorado and Wyoming due to very dry conditions, low humidity and gusty winds.

This is the second most severe fire season on record in Canada, according to the National Interagency Fire Center.

Millions in the U.S. face health threats as Canadian wildfire smoke causes air quality to plummet and triggers official advisories.