Hitchens on Global Warming

While I've recently read some interesting things that suggest that our overly simplistic models for predicting global warming are insufficient to the task, I do like Christopher Hitchens' comment to the effect that "we can't take the chance that we are either not making it worse or unable to minimize it. We don't have another Earth upon which to run this experiment -- we have to live on this one and we only have one chance to get it right."