Canada is having its second worst wildfire season yet. Two scientists explain what a red air alert means and how anyone living in impacted areas can protect themselves.

Smoke from Canadian wildfires continues to bring poor air quality into the Northeast U.S. and the Upper Midwest. And the exposure to wildfire smoke remains a growing health problem.

The smoke hanging over Western New York isn’t coming from local sources.  See where it’s actually coming from — and what ...

Smoke from ongoing wildfires across Canada continued to drift into parts of the United States on Wednesday, causing hazy ...

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states ...

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

Most of New York is under an Air Quality Health Advisory today due to wildfire smoke. Our team is monitoring conditions closely. Please check the Air Quality Index before you go outside and take any ...

A number of factors are now contributing to a "tipping point" on climate change and Canada's forests that the expert said ...

The remaining 10 states affected by medium to heavy smoke from the wildfires are Colorado, New York, New Jersey, Connecticut, Pennsylvania, Vermont, Massachusetts, Indiana, New Hampshire, and ...

Syracuse, N.Y. -- An air quality alert is in effect in Upstate New York for the third day in a row as smoke from wildfires in ...

Canadian wildfire smoke has affected Wisconsin all week, prompting multiple air quality alert extensions from the DNR.

Smokey skies have become common in Michigan lately, thanks to the wildfires burning in the western U.S. and Canada.