I’ve never been a big fan of ethanol-fueled cars because our system of growing commodity corn, the source of all ethanol, is so drenched in petroleum-based fertilizers and herbicides that I don’t think it actually changes our dependence on oil. As it turns out, there are other reasons to not immediately embrace ethanol, it makes our air less clean. According to a recent study out of Stanford, the air pollution effects of ethanol vs. gasoline emissions are actually worse and would cause more smog-related illnesses and deaths. There’s more on this “here”:http://news.yahoo.com/s/ap/20070418/ap_on_he_me/ethanol_health_risks;_ylt=AlksYcHSz0fQmP.hn.zzG7Ws0NUE or you can just read the report (“PDF”:http://us.rd.yahoo.com/dailynews/ap/ap_on_he_me/storytext/ethanol_health_risks/22684790/SIG=121piiffo/*http://www.stanford.edu/group/efmh/jacobson/E85PaperEST0207.pdf).