I hope that we do not hit a point of no return in respect to a relatively stable environment. This could be difficult to discern. The Waxman Markey bill in the US is a complete waste of effort with regard to cutting greenhouse gases. It may take a decade or more Katrina scale events before the public recognizes that Waxman Markey was primarily a deal for the coal industry to avoid strict EPA regulation and that economics have to take a back seat to survival.
Fred Singer disputes the warming data, of course. I notice he gets quoted in the mainstream media as a warming skeptic without mention of his history as professional (paid) skeptic for health concerns related to tobacco. He is a skeptic for hire.
Connect the dots folks. Turning to scientists who are willing to be paid to be skeptical of any scientific issue on behalf and on the payroll of specific industries does not constitute balanced coverage, it is simply journalistic negligence.