For several months, the “Monthly CO2 Reports,” compiled by me at www.scienceandpublicpolicy.org, have been pointing out that there has been no statistically significant “global warming” for 15 years. Regular attacks on my calculations and graphs have appeared on blogs by the usual suspects — Gavin Schmidt of NASA being, as usual, the most venomously ad hominem and the least scientifically plausible.
Then came Climategate. Kevin Trenberth, one of the many scientists whose activities I had been following with suspicion for some years, had privately been saying to his colleagues that there had been “no global warming for a decade” and that it was “a travesty” that they could not explain why. Publicly, of course, the Climategate conspirators had been saying that the last ten years were the warmest decade on the instrumental record — true, but not surprising given that there has been 300 years of global warming.
Now, Professor Phil Jones of the University of East Anglia has admitted publicly, and — as far as I know — for the first time, that there has been no statistically significant “global warming” for 15 years. He has also admitted that his Climatic Research Unit has lost much of the data behind the “hockey-stick” graph, via which Michael Mann and other Climategate conspirators had falsely attempted to demonstrate that the Medieval Warm Period was not warmer than the present.