The Sunday Telegraph has published an inaccurate story about the forthcoming IPCC fourth assessment report:
In a final draft of its fourth assessment report, to be published in February, the panel reports that the level of carbon dioxide in the atmosphere has accelerated in the past five years. It also predicts that temperatures will rise by up to 4.5 C during the next 100 years, bringing more frequent heat waves and storms.
The Telegraph report is obviously wrong. The IPCC report just summarizes the scientific literature. There has not been any paper published that would justify reducing the estimate. The reporter has confused climate sensitivity (how much warming you eventually get from doubling CO2), with predicted warming in 2100. In the third assessment report the top end of the range for sensitivity was 4.5, while the top end for warming by 2100 was 5.8. These numbers haven’t changed
in the new report, all that has happened is that the reporter has mistaken the 4.5 number for sensitivity as a new estimate for warming and reported it as a reduction from 5.8. Naturally, all the usual folk are spreading the bogus story across the net, including, of course, Inhofe.
The depressing thing is that this has all happened before. In September, the Australian published a story making exactly the same error.