The hazy air hovering over US cities, including Chicago and New York, this summer is reminding Americans of just how ...

Heavy surface smoke from wildfires in Canada is drifting across Minnesota on Monday, with unhealthy air quality levels ...

Western Canada faces a critical wildfire situation as a blaze near Port Alberni forces nearly 20,000 people on standby. Across the country, from Newfoundland to Nova Scotia, wildfires prompt ...

The Minnesota Pollution Control Agency extended an air quality alert for southeastern and northern Minnesota on Tuesday due ...

Minnesota and Canada share so much: frigid winters, a love for hockey — and more recently, massive plumes of toxic wildfire ...

Smoke produced by hundreds of wildfires burning across Canada has drifted thousands of miles and nearly circled the entire ...

Canadian wildfires burning across northern Manitoba and Saskatchewan are sending smoke through central Canada, the Great ...

Reps. Elise Stefanik and Nick Langworthy find the smoke wafting over New York "unacceptable." So is trashing efforts to fight ...

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the U.S. Midwest and worsening air ...

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

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.

Air quality alerts are in effect in the Philadelphia area, fueled by smoke from wildfires that are burning thousands of miles ...