I’ve just found a couple of letters in Nature (subs req) re the “leaking” of the AR4. Climate: open review may ease acceptance of report by Michael MacCracken, saying As executive director of the Office of the US Global Change Research Program from 1993 to 1997, I was responsible in 1995 for urging adoption of the national review process of the IPCC report that is questioned in your News story. And Climate: US has always made IPCC drafts available says Harlan L. Watson;In fact, US procedures, first published in the Federal Register in 1995, reflect our longstanding commitment to open IPCC reviews. Under the 1995 procedures, we provided paper copies of IPCC draft reports to any individual upon request
So how does this affect things? If correct (and I presume it is) then if the IPCC failed to protest then, it has tacitly accepted the procedure, which may be why it didn’t protest this time. However the SAR (95) was only available on paper, a rather higher barrier to bothering to get and read it than jmust an email click. And for the TAR there was at least a pretence of checking qualifications. Overall, this appears to clear the US govt of any evildoing (gasp; at least in this area); and perhaps, as various people have suggested, its even sensible.
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