[carmine]

Jetliners are the bigest culprid in my opinion. the polutants being dumped right up there high up. Just look up at the exaust trails left behind at any given time. multiplied by the thousands of jets in the sky at any given time. the polution number would be huge. Funny how you never hear talking about this type of polution. I,ll bet its the biggest contributor to our planets problem than anything else talked about.