Blast from the Past: Seitz and Singer on the tampering of IPCC AR 2

Posted: September 6, 2015 by tallbloke in Accountability, alarmism

Fred Singer

THE WALL STREET JOURNAL. Letters to the Editor:

Coverup in the Greenhouse? Wall Street Journal; New York; Jul 11, 1996;
Edition: Eastern edition Start Page: A15 ISSN: 00999660 Abstract:

My June 12 editorial-page article “A Major Deception on Global Warming” presents facts indicating that Benjamin D. Santer, and possibly others, made major unauthorized changes in a key technical chapter of the Intergovernmental Panel on Climate Change report after that report had b,een accepted by governments. The consequence of these changes was to delete the expressions of skepticism with which many scientists react to global warming claims. Dr. Santer’s June 25 Letter to the Editor in reply attempts to confuse the basic issue: Was the scientific report changed after the governments had formally approved it?

The facts of the case are quite simple. The deadline for reviewers’ comments on Chapter 8 of the IPCC report was July 7, 1995, according to a letter from IPCC Chairman Bert Bolin. In November 1995, the final draft of Chapter 8 was accepted by a working group of government representatives in Madrid. That identical version was accepted by the full IPCC at the plenary session in Rome the following month. But the version of Chapter 8 that was published was not the version that was approved at the IPCC plenary in Rome. All the major changes I pointed out in the published version — for example, deletion of the important statement that we cannot yet attribute the observed warming to the greenhouse effect — came to light only after the government representatives in Rome had accepted the supposedly final version and gone home.

Dr. Santer says that “IPCC procedures require changes in response to comments.” Of course they do, but not after the governments have accepted the final draft.

The fact is that someone connected with the presentation of the published version — presumably Dr. Santer and others — rewrote basic technical material in Chapter 8 with the result that scientific doubts about man-made global warming were suppressed. Clearly, governments will have to look elsewhere than the IPCC for sound science on climate change.

Frederick Seitz Washington (Mr. Seitz is president emeritus of Rockefeller University and chairman of the George C. Marshall Institute.


Dr. Seitz, former president of the U.S. National Academy of Sciences, has revealed that a UN-sponsored scientific report promoting global warming has been tampered with for political purposes. Predictably, there have been protests from officials of the IPCC, claiming that the revisions in their report, prior to its publication, did nothing to change its emphasis. They also claim that such unannounced changes of an approved draft do not violate their rules of transparency and open review. It is good therefore to have on hand an editorial from the international science journal Nature (June 13). Even though the writer openly takes the side of the IPCC in this controversy, impugning the motives of the industry group that first uncovered the alterations in the text, the editorial confirms that:

1. A crucial chapter of the IPCC’s report was altered between the time of its formal acceptance and its printing.

2. Whether in accord with IPCC rules or not — still a hotly debated matter — “there is some evidence that the revision process did result in a subtle shift. . . that. . . tended to favour arguments that aligned with the report’s broad conclusions.” (Critics of the IPCC would have used much stronger words.) The editorial further admits that “phrases that might have been (mis)interpreted as undermining these conclusions have disappeared.”

3. “IPCC officials,” quoted (but not named) by Nature, claim that the reason for the revisions to the chapter was “to ensure that it conformed to a ‘policymakers’ summary’ of the full report. . . .” Their claim begs the obvious question Should not a summary conform to the underlying scientific report rather than vice versa?

The IPCC summary itself, a political document, is economical with the truth: It has problems with selective presentation of facts, not the least of which is that it totally ignores global temperature data gathered by weather satellites, which contradict the results of models used to predict a substantial future warming. It seems to me that IPCC officials, having failed to validate the current climate models, are now desperately grasping at straws to buttress their (rather feeble) conclusion that “the balance of evidence suggests a discernible human influence on climate.” In this crusade to provide a scientific cover for political action, they are misusing the work of respected scientists who never made extravagant claims about future warming. It is clear that politicians and activists striving for international controls on energy use (to be discussed in Geneva in July when the parties to the Global Climate Treaty convene) are anxious to stipulate that the science is settled and trying to marginalize the growing number of scientific critics. It is disappointing, however, to find a respected science journal urging in an editorial that “charges. . . that [the IPCC] report on global climate change has been ‘scientifically cleansed’ should not be allowed to undermine efforts to win political support for abasement strategies.”

S. Fred Singer President

The Science & Environmental Policy Project

  1. jdmcl says:

    Please read Bert Bolin’s book “The History and Politics of Climate Change” (or something similar – I don’t have it with me at the moment.) The incident is mentioned about page 125.

    IIRC it talks of new paper from Santer, Wigley and others (many of whome were authors of the pivotal chapter of the IPCC report) that claimed to have found a distinct human influence in temperature patterns. The paper was submitted after the final review by experts (and we can reasonably assume it was to shore up a weak argument in the pivotal chapter). After deciding that the subsection text should be changed to incorporate the new paper John Houghton raised the matter of modifying the entire chapter where necessary to be consistent.

    The task of revising the IPCC chapter was given to Santer, despite him being an author of the new paper, which had only been submitted to a journal, not peer-reviewed and accepted for publication.

    The paper wasn’t published until about 18 months later and it cited the IPCC report which cited it (a situation worthy of Dr Who!). Almost immediately the paper was seen as nonsense and disregarded by the wider scientific community (and we probably wouldn’t know about it today except for its influence on the IPCC report).

    There’s another side to this that’s rarely mentioned. The IPCC was in grave danger of being made redundant and being disbanded. The recently formed UNFCCC wanted to establish its own scientific group (ATB?) that would do the same thing as the IPCC but be under the direct control of the UNFCCC. Santer’s changes to the IPCC report resulted in the UNFCCC relegating its scientific(?) group to other work and engaging the IPCC to provide the required information. In about 1995 or 1996 the IPCC was directed to “support the work of the UNFCCC”, an instruction that continues to this day.

    There’s plenty of good material on this from

  2. jdmcl says:


    Bolin’s book is “A History of the Science and Politics of Climate Change”, published by Cambridge University Press (2007), ISBN 978-0-521-88082-4 (hardback) and 978-0-521-08873-2 (paperback)

    The UNFCCC’s techical group was the Subsidiary Body of Scientific and Technical Advice (SBSTA).

  3. jdmcl says:

    Aaargh – I forgot to mention …

    The page number in the paperback version of the book is 112 and it runs onto page 113, with end notes on page 256.

  4. Dr Singer was roundly criticized back then and afterward, with many citing a particular article writer/book author “reporter” who supposedly exposed him as a ‘paid industry shill’. Here’s another blast from the past with his response: “What Dr S. Fred Singer said about Ross Gelbspan, circa 1997”

  5. Bob Tisdale says:

    Tallbloke, typo alert. Shouldn’t the title read “Blast from the Past: Seitz and Singer on the tampering of IPCC AR 2”, not AR 3? The 3rd Assessment Report was published in 2001, and the Seitz and Singer letter was written in 1996.


  6. hunter says:

    Ben Santer is a clever hoodlum. He wants to attack skeptics in a dark alley, and apparently likes to forge documents- didn’t Peter Glieck, another big time climate fear promoter actually do an ID theft and forged documents to try and damage some skeptics?
    The shared behaviors of climate creeps is interesting.