Climate Change Is Making Smoky, Unhealthy Air More Common

This summer, wildfire smoke has at times blanketed much of the West, with ash falling from the skies. The resulting unhealthy air quality is dangerous for people with lung and heart problems. The latest national climate assessment projects the number of acres burned by wildfires will quadruple in the next 70 years. That means more bad air days and more health risks for people with asthma and heart disease.