State officials from Maine to New York issued alerts for fine particulate matter, a toxic byproduct of wildfires that is small enough to be inhaled.

Considering wildfires, and prevailing winds blowing from Canada, are expected to become more frequent, the impact on crops ...

As a large swath of Manitoba deals with heavy wildfire smoke polluting the air, others in the province are starting ...

A growing body of research shows the cascading health impacts of wildfire smoke, from cognitive decline to heart issues.

Wildfire smoke from Canada has triggered air quality alerts across New York and the Northeast, with hazy skies and unhealthy ...

A group of Republican lawmakers has complained that smoke from Canadian wildfires is ruining summer for Americans, just days ...

As record wildfires erupt across Canada this year, with health-threatening smoke drifting into the U.S. and as far away as ...

Smoke from Canadian wildfires again plagued portions of the northern United States on July 16, prompting air quality alerts from Illinois to Maine.

Ground slumping in yedoma permafrost after a wildfire, in the interior of Alaska. Yedoma permafrost generally contains large ...

Canadian wildfire smoke will significantly impact air quality across Michigan on Friday, with unhealthy conditions expected ...

A new government model to estimate peatland emissions and their impact on climate change could provide a new perspective on ...

Minnesota experts say Canadian wildfires will lead to more poor air quality days across Minnesota this summer, and into the future as temperatures and drought increase.