The smoke combined with the summer ozone problem is giving Colorado a double punch of bad air.
The smoke combined with the summer ozone problem is giving Colorado a double punch of bad air.
For several weeks, wildfires burning across the state have produced gases and particles in the air, making outdoor activity..
The Grizzly Creek Fire grew to 6,251 acres as of Thursday morning, with no containment and another day of red flag warnings, high..