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..

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

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 ...

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

Montana Fire sparks in Slate Canyon, Provo. Crews battle blaze in rugged terrain; no evacuations yet as officials urge ...

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

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

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

Researchers found that wildfire smoke can raise ozone to dangerous levels, posing hidden health risks even in remote areas.

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