However, the research also showed that a sharp reduction in the emissions of certain pollutants would lead to dramatically decreased levels of ozone even as temperatures warm. (sciencedaily.com)
New research is confirming this may have something to do with their exposure to certain pollutants in the womb. (greenmedinfo.com)
Advocates argue that ethanol burns cleaner than gasoline, and studies show that it does reduce certain pollutants. (nytimes.com)