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

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

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 ...

Researchers are now assessing the mortality impacts of wildfire smoke, as it contains pollutants like PM2.5 that have been ...

Some Team P.E.I. athletes are back on the Island after taking part in the Canada Games, where their competition was ...

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

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

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

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

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

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