Wildfires scorching the West Coast create nationwide air pollution

The explosive wildfires in the West are threatening millions of Americans with potential health problems. Smoke from those fires has drifted across the country, leading air quality levels to plummet.

From the ground and sky, crews are fighting the flames of the Tamarack Fire, which is located south of Lake Tahoe. The blaze is 0% contained and has grown, crossing state lines into Nevada. Extreme heat and drought have created tinderbox conditions in southwest Oregon, where the Bootleg Fire has burned more than 394,000 acres. Crews from Arkansas, Nevada, and Alaska are joining more than 2,000 personnel battling the fire there.