Like much of the U.S., Chicago was under a thick hazy blanket of wildfire smoke, creating dangerous conditions for anyone who ...

At the height of wildfire season, thousands of firefighters regularly face a host of dangers on the frontline, including ...

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..

For your safety, it’s recommended to stay inside as much as possible with air conditioning on when air quality alerts are ...

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.

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 corridor this week.

The smoke from the wildfires that burned through Los Angeles in January smelled like plastic and was so thick that it hid the ...