Tens of thousands of people who fight wildfires spend weeks working in toxic smoke and ash wearing only a cloth bandanna, or ...

Smoke from Canadian wildfires has blanketed Michigan this summer, with 31 days of warnings for parts of Michigan..

In a key finding, researchers admitted that the mortality risks were underestimated by 93 percent. This revelation highlights ...

Air quality has taken a serious hit across the United States as a two-fold blow of wildfires in the West and in Canada have ...

Firefighters were concerned Sunday about the possibility of fire spreading under trees and a warming forecast later in the ...

While the smoke is worst along the Western Slope where the fires are burning, levels are also fluctuating on the Front Range.

Republican lawmakers are blaming Canada for not preventing and containing wildfires, whose smoke has fouled the air in ...

State officials are encouraging Michiganders who own their own air quality sensors to contribute their readings to ongoing ...

Firefighters are tackling a major moorland wildfire for a sixth day, with smoke from the blaze visible up to 80 miles (128km) ...

Several rounds of wildfire smoke have been moving into Denver, Boulder, Fort Collins and communities up and down the I-25 ...

Maine has seen more wildfire smoke in recent years, and the culprit is climate change. MAINE, USA — Wildfire smoke has been ...