@Philip Kroker
You say that the climate has been warming ever since the last Ice Age. Really? I bet that the people who lived during the 16th century through the early 19th (roughly on both sides) AKA "The Little Ice Age" would be interested in hearing that. And, we don't just have lots of physical evidence, such as tree rings, we have historic evidence if you know how to interpret it: numerous monastery records of when they plowed, sowed and harvested, showing how the growing seasons were getting shorter, as well as the fact that they weren't able to grow grapes in England any more.
The big mistake some of the more simple-minded Global Warming fanatics make is thinking that ever since the last Ice Age the climate had been stable and that suddenly, about 100 years ago or so, it started changing, and getting warmer. That, of course, is nonsense, and I hope all El Reg readers understand that. The climate is always changing, and right now, it seems to be getting warmer. The big questions are, how warm is it going to get and how much of this (if any) is man made?
Now, I'd be the last person to deny that it's probably a Bad Idea to continue our open-ended experiment of throwing CO2 into the atmosphere to see what happens, but I'm also skeptical about the need for drastic, irreversible measures. From what I've recently heard, painting your roof white will cancel out quite a bit of "CO2 footprint," and if you don't like the results, all it takes is a few gallons of black paint to reverse it.