Burning parcels of land intentionally, known as controlled burning, has long been a controversial practice.
Montana has dispatched emergency crews to help fight raging wildfires north of its border.
Summer has come with an unwelcome visitor: periods of thick, smoky air brought on by Canadian wildfires.
Prescribed burns could help reduce the impact of the most catastrophic fires.
Periodic smoky air from Canadian wildfires is getting attention over public health concerns.
The Marshall Fire in Boulder County was caused by two distinct ignitions.
U.S. senators on the Budget Committee dug into the impacts of climate change.
Smoke from more than 200 wildfires burning across Canada has been turning skies hazy in North American cities.
An air quality advisory for eastern Colorado remains in effect until at least 4:00 p.m. Saturday.
Eastern Colorado is under an air quality advisory until at least 4:00 p.m. Friday.