I watched a documentary on current tv about this.in the middle of the sea there's a huge collection of crap ,plastics half broken down stuff.anyway these scientists were towing a raft behind them collecting this stuff and testing it.they had also been testing children.in coastal areas.and they found that the transparent plastic bottles cause more females,and male children were being affected to the extent of if we don't stop ingesting this males would be more like females.scary shit.espeacialy all the clear plastics we drink from daily.