The sternly worded statements and letters are filled with indignation and outrage: Republican U.S. lawmakers say Canada has ...

While the smoke is worst along the Western Slope where the fires are burning, levels are also fluctuating on the Front Range.

While relief from the heat in the form of cool, Pacific breezes are on the way to Western Washington, the near-record hot ...

Researchers found that wildfire smoke can raise ozone to dangerous levels, posing hidden health risks even in remote areas.

Climate activists are calling out U.S. Rep. Jack Bergman after the Watersmeet Republican sent a plea last week to a fellow ...

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

The Oregon Department of Environmental Quality has released the 2025 Wildfire Smoke Trends Report, which gathers and examines ...

West-Northwest Winds will continue to bring Smoke south from Canada into Minnesota Today and at times Air Quality in the Twin ...

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

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