I hate to pester on this one, but I will not pretend to be a climatologist and I get a little skeptical when anyone who is not one claims to have 'proof' one way or another. I have heard people site meteorologists (people who study how weather patterns develop over a 7 day to two week period), biologists (people who study life..cellular, etc.), environmentalists (people who study the ecosystem and biodiversity), and a whole bunch more. Climatologists are the ones who study the climate over thousands (heck, millions) of years, and can identify trends, both short term and long term. I have yet to hear a single one of these people (if you disagree, please find one to prove me wrong) say that the 'Global Warming Theory' is flawed. Taking any other testimony would be like asking a car salesman how a long term mutual fund is going to preform. They may have little snapshots of reality, but they lack the expertise of the big picture. I learned long ago to reserve my opinions about these matters to the people who have the time and energy to learn the 10 years of sceince it takes to make valid inferences. Of course if someone disagrees with me and can show me someone, I would be more than willing to look at them, evaluate their science (with the help of friends) and change my opinion if necessary (like I said, I am not expert and therefore not married to this view).