You are using an older browser version. Please use a supported version for the best MSN experience.

Wildfire smoke health impact expected to spread

More intense and frequent wildfires in the U.S. means more lung-damaging smoke that researchers say could affect tens of millions of people. One study estimates the number of deaths from chronic exposure to smoke will double in coming decades. (June 25)

Most Recent



image beaconimage beaconimage beacon