Breathing in polluted air for extended periods of time can pose a serious health risk for people, especially for vulnerable ...

Smoke from hundreds of wildfires in Canada has choked the skies over dozens of northern U.S. states in the Great Lakes and Northeast regions.

Two allies of President Donald Trump from Upstate New York have sent a letter to Canadian Prime Minister Mark Carney over the ...

For the first time in over a week, Michigan sees healthier air as wildfire smoke clears. All advisories are discontinued as of Aug. 7.

Wildfire smoke drifting over the Washington, D.C., area is making the skies look hazy and negatively affecting air quality.

More smoke and heat is expected across the Pikes Peak Region Thursday as morning temperatures quickly rise, prompting another ...

While wildfire smoke levels have been diminishing, there’s still enough air pollution to cause problems for those in various health and age-related groups. While wildfire smoke levels have been ...

It'll be a scorcher in southern Colorado today as the mercury climbs to the upper 90s to triple digits with heat indexes in the 90s for most. Heat Advisories and Red Flag warnings are both in effect.

The Canadian wildfire smoke is continuing to drift into the Mid-Atlantic region, which is impacting air quality statewide.

L.A.’s fires have reshaped the city. It is also possible that they have triggered changes in our very cells whose ...

Millions of Americans have been urged to avoid driving amid concerns over high air pollution levels. Air quality alerts were issued across parts of Illinois, Colorado, Wyoming, and Arizona on Thursday ...

For the first time since Saturday, state officials haven’t issued an air quality health alert as the smoke from Canadian wildfires should be subsiding. Winds from the south are expected to flow into ...