Please give some evidence that is backed by scientific data.
I will give some data to the contrary:
JPL | News | The 'Unstable' West Antarctic Ice Sheet: A Primer
An overview of Antarctic ice trends
Sun & climate: moving in opposite directions
http://www.skepticalscience.com/gree...termediate.htm
Back on topic: still don't see any real data on the fuel efficiency and emissions of the fuel vapor thingy...