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Hegerl Proxies: #1 – Mann PC1
The Hegerl et al 2006 climate reconstruction is finally online here . I’m going to go through the proxies individually before talking about method. Obviously the first one to look for is Mann’s North...
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Wegman's replies to Stupak
I know this is well after the event, but Dr Wegman’s extensive and detailed responses to Rep Stupak‘s written questions are interesting reading. I’m not aware that Steve linked to this document before....
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Bürger Comment on Osborn and Briffa 2006
Gerd Bürger published an interesting comment in Science 2006 on cherry-picking in Osborn and Briffa 2006. A few CA readers have noticed the exchange and brought it to my attention. Eduardo Zorita (who...
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The Sheep Mountain Update
This post contains an important calculation, which will affect the many multiproxy studies in which Graybill bristlecone chronologies impact results either directly or via Mann’s PC1. Hans Erren has...
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The Hockey Stick and the Milankovitch Theory
The 20th century warming counters a millennial-scale cooling trend which is consistent with long-term astronomical forcing. MBH99 According to the UMass researchers, the 1,000-year reconstruction...
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