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 ...

Some state and federal lawmakers are speaking out about the negative impact of Canadian wildfires, including a recent letter ...

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

Manitoba Premier Wab Kinew accused a group of Republicans of throwing a "timber tantrum" after they called out Canada over ...

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

Smoke from hundreds of wildfires burning across Canada has polluted skies and reduced air quality across large portions of ...

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.

U.S. Highway 20 has reopened and traffic is moving again, according to the Idaho Transportation Department. ORIGINAL STORY ...