Thanks for the link, I will read more from that site, as it looks a cut above most of them.
However, there is no help in the graphs. As I keep pointing out, the issue is not how flat the handle is, but whether anything remotely like the last century can be found in the historical record. The answer is no. Of the graphs shown, the best hope is around 1000 AD, but that spike bares no resemblance to the 1900-2000 shape.
Further, you might note that these "improved" approaches show the temps being lower than Mann, significantly in the 1200-1800.
Looking at Fig 4, it would appear that a natural cooling trend from 1200 on was interrupted by global warming in 1900, and that Mann's graph shows far less of this effect than Fig 4 does. Fig 4 is a far more powerful argument for global warming than is Mann's graph! Unless you want to hide behind the claim that it is all just natural cause. Fine, that will eventually be determined. But if it is global warming, then Fig 4 says the effect is much greater to date than what is claimed by global warming advocates. So, interesting problem...
PS Note in Fig 4 that Mann's error bands are as I said. No revised versions show anything outside, and they almost all lie below his curve anyway, thus showing more extreme warming since the industrial revolution, rather than less. LOL! |
