Like much of the U.S., Chicago was under a thick hazy blanket of wildfire smoke, creating dangerous conditions for anyone who ...

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

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

The smoke from the wildfires that burned through Los Angeles in January smelled like plastic and was so thick that it hid the ...

Firefighters are tackling a major moorland wildfire for a sixth day, with smoke from the blaze visible up to 80 miles (128km) ...

Smoke from Canadian wildfires has blanketed Michigan this summer, with 31 days of warnings for parts of Michigan..

Firefighters were concerned Sunday about the possibility of fire spreading under trees and a warming forecast later in the ...

In letters expressing outrage and indignation, Republican lawmakers are demanding more forest thinning, prescribed burns and ...

The U.S. Forest Service has fought decades of efforts to better protect its crews — sending them into smoke without masks or ...

Prepare for a hot week ahead. Today will bring highs from the upper 90s to triple-digit heat expected. Here's what you need ...

State officials are encouraging Michiganders who own their own air quality sensors to contribute their readings to ongoing ...