A dramatically large and dark column of smoke dominated the sky Tuesday as the Gifford Fire continued to burn in San Luis ...

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 ...

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

One resident tells FOX 5 NY they were working from home when they heard a loud explosion and felt part of the building shake ...

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

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 ...

Nearly 30 firefighters from across two regions are tackling a woodland blaze that has caused smoke to be seen from Birmingham ...

Smoke carried by winds from wildfires burning in Nova Scotia and New Brunswick affected many parts of Prince Edward Island on Thursday.

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

Billowing clouds of Canadian wildfire smoke have transformed blue skies into apocalyptic orange scenes across the eastern United States. But the fuzzy skylines are more than just a bleak sight.