Daily Archives: January 6, 2010

Wegman and Rapp on proxies: A divergence problem, part 2

Recent posts on the Wegman Report and Donald Rapp’s Praxis-Springer text book Assessing Climate Change have generated much comment. In A Divergence Problem, part 1, I noted  that the sub-section on dendrochronology (tree ring-proxies) in Rapp’s book was based in large part on nearly verbatim material found previously in the Wegman Report. That in turn was a somewhat distorted summary of material found in Raymond Bradley’s seminal text book, Paleoclimatology: Reconstructing Climates of the Quaternary.

In this follow up post, I”ll examine the Wegman’s treatment of other proxies, which were also derived from Bradley.  I’ll also take a closer look at the three proxy sub-sections in Rapp that are derived in turn from Wegman. In all three cases,  divergences are slight, but do include some interesting changes in the references.

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