"Wildfire Smoke Descends Across Central US, Causes 'Unhealthy' Air Quality"
"The sun looked orange as it shined through a thick blanket of wildfire smoke on Tuesday across a large area of North America, including in Denver, and the smoke could spread even farther in the coming days."
"The sun appeared orange and red through a layer of haze on Tuesday morning as a large blanket of wildfire smoke covered part of the central United States and Canada.