Frances Beinecke, NRDC president, suggests that carbon dioxide is causing increased urban air pollution in the US

A Call for Climate Solutions - NYTimes.com

Climate change is not an elite concern; it is a force upending American lives with crippling drought, increased urban air pollution and devastating floods.

Flashback: Drop in U.S. air pollution linked to longer lifespans - CNN

Americans are living longer because the air they breathe is getting cleaner, a new study suggests. The average drop in pollution seen across 51 metropolitan areas between 1980 and 2000 appears to have added nearly five more months to people's lives, according to a study published Wednesday in The New England Journal of Medicine.