Corrections to the Mann et. al. (1998) Proxy Data Base and Northern Hemispheric Average Temperature Series

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Millennial temperature reconstruction intercomparison and evaluation (2006, unknown): “Section 4 discusses general criticisms of millennial temperature reconstructions raised by McIntyre and McKitrick (2003) (hereafter MM2003).”
Climate Change 2007: The Physical Science Basis Summary for Policymakers (2007, unknown): “The mathematics that derived the so-called “hockey stick” curve in the 2001 IPCC Report have been comprehensively trashed by McIntyre and McKitrick (2003).”
Long‐term persistence in climate and the detection problem (2006, unknown): “and McIntyre and McKitrick [2003] (grey, 1400–1980).”
Hockey sticks, principal components, and spurious significance (2005, methodology): “Our focus here is on the 1400–1450 step (‘‘AD1400 step’’) of MBH98, because of controversy over early 15th century temperature reconstructions [McIntyre and McKitrick, 2003; M. E. Mann et al., Note on paper by McIntyre and McKitrick in Energy and Environment, unpublished manuscript, 2003, available…”
Are multiproxy climate reconstructions robust? (2005, background): “The uncertainty is traced back to the fact that regression is applied here in an extrapolative manner, with millennial proxy variations exceeding the standard calibration scale by a factor of 5 and more.”