Smoke will likely be an ongoing health hazard across North America for the next few months. Here's what to expect.

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate.

Dozens of wildfires remained active Sunday and diminished air quality in parts of Canada and the U.S., according to officials ...

As the global climate continues to warm, fire seasons have intensified, and large-scale wildfires have become more frequent ...

More than 25,000 residents in three provinces have been evacuated as dozens of wildfires remained active Sunday and ...

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

Many fires burning across Canada, forcing evacuations and threatening air quality in the United States, cannot simply be put ...

Horrific summer wildfires are once again ravaging large swaths of Canada’s vast forests, sending frequent plumes of unhealthy smoke deep into the United States.

On the afternoon of May 22, a wildfire sparked next to Highway 395 near the Mono Lake Tufa State Natural Reserve in the ...

Wildland firefighters in North America and other parts of the world have seen rising temperatures transform fire behavior into dangerous feedback loops. A veteran 'hotshot' gives a glimpse of life on ...