Weather across Colorado competed for most dramatic forecast on Saturday as red flag conditions challenged firefighters on the ...

Thick smoke from the Canyon Fire clouded the sky in Castaic, California, on Friday. The fire has burned more than 5,000 acres ...

Small particles can get lodged in crevices of organs from lungs to arteries, causing inflammation and other health issues.

The National Weather Service said the alert will be in effect until Sunday morning in the Santa Clarita Valley and Saturday ...

This story was originally published by Grist with the headline As California burns, new research shows smoke is wildfire’s ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts ...

Wildfire smoke can cause eye and throat irritation, coughing, wheezing, and shortness of breath — even for healthy people. It ...

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 doesn’t just cloud the horizon, it can chemically change the air at ground level and in layers of the ...

Smoke drifting south from Canadian wildfires has made skies in Pennsylvania and other states hazy this week. The Pennsylvania ...

The wildfire areas of Manitoba and Saskatchewan are projected to receive 50 millimeters to 100 millimeters of rain this ...

Several rounds of wildfire smoke have been moving into Denver, Boulder, Fort Collins and communities up and down the I-25 ...