Study: Cleaner air adds 5 months to US life span

Wednesday, January 21, 2009 - 17:28 in Earth & Climate

LOS ANGELES (AP) -- Cleaner air over the past two decades has added nearly five months to average life expectancy in the United States, according to a federally funded study. Researchers said it is the first study to show that reducing air pollution translates into longer lives....

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