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

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

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

Though wildfire smoke was to credit for poor air quality earlier in the week, Wednesday's alert is due to high-levels of ...

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 ...

A touch of wildfire smoke is expected to drift over the Washington, D.C., region Thursday, bringing a slight haze but no major air quality concerns.

Manitoba Premier Wab Kinew accused the state Republicans of throwing a "timber tantrum" over the effects of Canadian wildfires.

The summer of deadly flash flooding continues, with two people killed by flash flooding near Spring Hope, North Carolina, when their car was swept away by flood waters.