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

Proposed jobs and grants cuts by the Trump administration could have detrimental impacts in air quality monitoring at the ...

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for days.

Smoke from wildfires burning in three Canadian provinces covered about a third of the U.S. on Wednesday, forecasters said, ...

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with ...

Haze will take over New England skies as more than 200 wildfires continue to rage across Central and Western Canada.

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

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

Another large fire exacerbated by climate change is threatening the health of Chicagoans. Government officials issued an air pollution "action day" on Thursday.

Right now, wildfires are raging across over 7 million acres of boreal forest in Western Canada, a continuous blanket of conifers and growth that covers much of the country and is particularly ...