Canada's environment ministers back tougher air quality standards, citing wildfire smoke and rising health risks from fine ...

California's largest blaze this year explodes in size as hot weather raises wildfire risk statewide Megalodon Sharks Were ...

Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

Wildfires have been raging along the West Coast and in Canada for most of the spring and summer. For some U.S. residents, ...

Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

Wildfire smoke was helping raise ozone to hazardous levels. No alerts have been issued, but the air quality may approach “code orange” levels again late Thursday afternoon in parts of the region, as ...

Air quality warnings were issued for most of Alberta on Wednesday as smoke from the many wildfires in western Canada covered the province in a thick blanket of smoke.

Following a period of heavy wildfire smoke in Ontario, daily ED visits for asthma-related causes rose and stayed up for ...

P lenty of research shows that respiratory distress and heart attacks spike in the event of smoke exposure; acute impacts of ...

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.