Oct 28, 2013 12:04 PM EDT
Wildfire Smoke: Is this Becoming a Serious Health Hazard for Some States?
An analysis by the Natural Resources Defense Council found that nearly 50 times more square miles held high density smoke lasting nearly 12 days that were not burned by fire, according to USA Today. As two years ago, more than 200 million Americans lived in countries that were hit by wildfire smoke,...