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.

Wildfire smoke from Canada continues to impact air quality across central Pennsylvania, with hazy conditions expected through ...

Code Yellow Air Quality or moderate level for particle pollution are forecast for Thursday and Friday. This may cause health symptoms for groups of people in the unusually sensitive category.

Wildfires burning in Canada sent smoke across the northeastern U.S. in the first days of August. Armed police arrest gardener ...

The National Weather Service issued air quality alerts on Monday for millions of Americans in Wisconsin, Michigan, ...

Days of haze no more, at least for now. The wildfire smoke from Canada that has sickened some and prompted lawmakers to ask ...

The letter calls for an investigation into Canada’s wildfire management practices and for potential remedies under international law.

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.

Manitoba Premier Wab Kinew accused a group of Republicans of throwing a "timber tantrum" and playing "political games" after they called out Canada over wildfires sending smoke billowing across the in ...

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

Wildfires raging across remote areas of northwest Canada are proving nearly impossible to contain, according to the Times ...

It’s more than just winds that play a factor in how this smoke gets to our region–meteorology and atmospheric conditions play a huge role.