https://www.theguardian.com/environ...-huge-reduction-in-intelligence-study-reveals A study that air pollution causes HUGE reduction in intelligence. https://www.usatoday.com/story/news...-eight-10-most-polluted-u-s-cities/524815002/ A report that California has 8 of the 10 most polluted cities in the US. Tell me again...how do cities in California usually vote? Oh yeah...Democrat. Hillary won the popular vote because of the polluted cities in CA that cause reduction to intelligence which made those people vote for her. Sorry libs...the science is out. To deny it, makes you nutjob science deniers.