Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

Firefighters in Arizona were trying to contain a pair of fast-moving wildfires that destroyed a historic lodge in Grand ...

The nearly 13,000-acre wildfire burning in eastern Utah crossed the Colorado border Monday night, joining four other fires ...

Wildfires have scorched hotspots in several Mediterranean countries this month, with blazes forcing thousands of people into ...

With a pump and a sprinkler, one Palisades resident thinks he can help Californians protect their homes from fire. Experts ...

Heavy winds that swept through Black Canyon of the Gunnison National Park on Sunday night started “rapid fire spread” after a ...

At least four firefighters have been injured over the last week while battling three wildfires in Northern California forests ...

The Dragon Bravo Fire has destroyed dozens of structures and a water treatment facility, and the White Sage Fire, located in ...

The Grand Canyon was formed with the shifting of tectonic plates, which lifted layers of rock into a high and relatively flat ...

Smoke from Northern California wildfires, including the Green Fire, continues to affect Reno and surrounding areas. As of ...

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...

Wildfires are raging near the Grand Canyon National Park, forcing the closure of the park’s northern rim. One of the ...