Lynn sed:
And, as mentioned, WGI “The Science” uses only top level peer-reviewed studies and data, and even WGII and WGIII use very good sources for the most part – the glacier-gate fiasco is bound to make these reports even better and more error-free.
FOC: Did Dr. Mann use good data in his two Hockey Stick papers (MBH 98 and MBH 99)?
P: I am very sure he did.
FOC: But aren’t you aware of the work of Steven McIntyre and Ross McKittrick?
P: I am, but they aren’t real scientists.
FOC: Isn’t it true that McIntyre reported numerous problems with Mann’s data. In some cases it was impossible to find the original data sources. The data sets had gaps and in some instances the gaps were filled in using the last available number. Some data sets were mislabeled, some were truncated, and some were obsolete. McIntyre also discovered that Mann had used data sets which were known to be unsuitable for temperature reconstructions but which were apparently included because they had the desired hockey stick shape. Isn’t that all true?
P: I really doubt it.
FOC: Are you aware that McIntyre’s revelations forced Mann to publish corrections?
P: Really? No I didn’t know that.
FOC: [hands Dr. P a copy of the first MM paper published in Energy and Environment.] Dr. P, have read this journal article?
P: No.
FOC: Are you aware of any peer-reviewed articles which showed that Mann’s data did not have gaps, was not mislabeled, obsolete, etc.?
P: No. But his conclusions were vindicated by many other independent studies, including a blue-ribbon panel sponsored by the National Academy of Sciences.
FOC: So using bad data is OK as long as someone else agrees with your conclusions?
P: [sputters something inaudible]
FOC: Isn’t it true, then, that we have a very important and influential paper that had serious problems with its data, and yet it made it through peer review and eventually was published in Nature in 1998?
P: Apparently.
FOC: And isn’t also true that it sailed on through the “very rigorous” IPCC review process, with the Hockey Stick curve given prominent display in multiple parts of the 2001 report?
P: Well they must have thought that the data problems weren’t that severe.
FOC: Isn’t it also true that, according to Steven McIntyre, there was every indication that no one bothered to look at Mann’s data until 2004, when McIntyre attempted to audit Mann’s work?
P: Hard to believe.
FOC: Dr. P, isn’t also true that true that Mann’s methods were found to be severely flawed?
P: I know there were allegations of such, but I don’t know that they were ever proved.
FOC: Specifically, are you aware that two expert panels both agreed that Mann’s Hockey Stick was an artifact of his flawed statistical methods and not inherent in the data?
P: Probably experts funded by the fossil fuel industry.
FOC: Are you aware that one of the panels was formed by the National Academy of Sciences and was actually very friendly to Mann and tried very hard to support him?
P: No
FOC: So isn’t it true that a study with bad data and bad methods not only survived normal peer review but also passed muster with the IPCC?
P: So what. Other independent studies reached the same conclusions.
FOC: So using bad data and bad methods doesn’t matter as long as you get the “right” conclusions?
P: ‘spose so.