The Department of Natural Resources and Environmental Control warns of air that is unsafe for sensitive groups on July 5.

MIchigan's air quality will be unhealthy for some groups Saturday. Check the air quality index map to see if it's good or bad ...

Growth of the Madre Fire burning off Highway 166 expanded overnight, now having scorched 70,801 acres by Friday morning.

California's Madre Fire sparked in the late evening of July 3 but has since grown to the largest in the state this year by ...

The Madre Fire is a fast-moving brush fire off Highway 166 near Cuyama on the border of San Luis Obispo and Santa Barbara ...

[Update: Thu., July 3, 5:36pm] The Madre Fire has expanded to 52,593 acres as of 5:17 p.m. on Thursday, still with only 5 ...

Yesterday Iranian media published new CCTV footage purporting to show an attack on Tehran during the war which was widely ...

Any type of fireworks that leave the ground are illegal in Colorado; however, depending on where you live, there may be ...

The fire rapidly spread to over 35,000 acres overnight as it burned through grasslands in a section of the Los Padres National Park. By around 9:30 p.m. PT on July 3, the fire expanded to ...

On Thursday afternoon, a fast-moving wildfire erupted near the 57 Freeway and Timber Canyon in Brea. Now named the Tonner ...

The U.S. has one of the world’s most advanced systems to monitor air pollutants. Can it keep up with a changing climate?