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

Beach volleyball matches were postponed on Tuesday and for part of the day on Wednesday after an evacuation alert was issued ...

She says emissions from things like transportation and heating have never triggered an air quality alert in Vermont, unlike ...

The hazy air hovering over US cities, including Chicago and New York, this summer is reminding Americans of just how ...

DENVER (KDVR) — As wildfires burn across the Western Slope, people are seeing the effects hundreds of miles away with hazy ...

The other problem is that they sound like good news. Negative feedbacks face the opposite problem. In a negative feedback, ...

Visibility in the Denver metro was limited on Wednesday, and many people could smell smoke from the wildfires burning 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 ...

Wildfire smoke from the Bear Gulch Fire could create “unhealthy or hazardous” air quality conditions in Mason County over the ...

Expect a cooler Wednesday with hazy skies from Canadian wildfire smoke, followed by a warming trend and potential ...

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

Here's why the Canadian wildfire smoke is returning to the state and what to know about the latest air quality advisory.