Smoke from US wildfires boosting health risk for millions

BILLINGS, Mont. — Climate change in the Western U.S. means more intense and frequent wildfires churning out waves of smoke that scientists say will sweep across the continent to affect tens of millions of people and cause a spike in premature deaths.

That emerging reality is prompting people in cities and rural areas alike to prepare for another summer of sooty skies along the West Coast and in the Rocky Mountains — the regions widely expected to suffer most from blazes tied to dryer, warmer conditions.

http://www.startribune.com/jump-in-wildfires-means-smoke-s-health-impact-will-spread/511767162/