200 million Americans living 1.6 yrs longer due mostly to Clean Air Act - Michael Greenstone via @UpshotNYThttp://www.nytimes.com/2015/09/25/upshot/the-connection-between-cleaner-air-and-longer-lives.html?rref=upshot&module=CloseSlideshow®ion=SlideShowTopBar&version=SlideCard-3&action=keypress&contentCollection=The%20Upshot&pgtype=imageslideshow …
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