There was a documentary produced on how global warming is a scam invented so that they can collect tax revenue from carbon credits.
I highly recommend watching it if you haven't seen it already.
http://video.google.com/videoplay?do...70191369613647
Science is about keeping an open mind and examining the evidence. When you have Al Gore saying, "There is no debate. The debate is closed", it sounds like bullshit to me. There are plenty of people saying anthropogenic (man-made) global warming is a scam.