of climate scientists who disagree with aspects of the IPCC's work. Perhaps the best known is Richard Lindzen, professor of meteorology at the Massachusetts Institute of Technology. A report by the UK Parliament's House of Lords Economic Affairs Select Committee (EAC, 2005) contains criticisms of the IPCC's work, including the "SRES" greenhouse gas emissions scenarios, which are used in the TAR. The Economic Affairs Select Committee is made up of members of the House of Lords, which scrutinizes and votes on government legislation. One of the criticisms made by the EAC (2005) is an apparent inconsistency between the Working Group II Summary for Policymakers and a statement made in the full WGII report: "The IPCC Summary for policy makers says that economic studies underestimate damage, whereas the chapter says the direction of the bias is not known." The UK Government issued a response to the report by EAC (2005). The UK Government acknowledged the discrepancy between the WGII SPM and full WGII report which was referred to by the EAC (2005), but remained generally supportive of the IPCC's procedures. The UK Government rebutted a number of other criticisms of the TAR which were made by the EAC (2005). Discussion of the "hockey stick" graph The third assessment report (TAR) prominently featured a graph labeled "Millennial Northern Hemisphere temperature reconstruction" based on a 1999 paper by Michael E. Mann, Raymond S. Bradley and Malcolm K. Hughes (MBH99), which has been referred to as the "hockey stick graph". This graph extended the similar graph in Figure 3.20 from the IPCC Second Assessment Report of 1995, and differed from a schematic in the first assessment report that lacked temperature units, but appeared to depict larger global temperature variations over the past 1000 years, and higher temperatures during the Medieval Warm Period than the mid 20th century. The schematic was not an actual plot of data, and was based on a diagram of temperatures in central England, with temperatures increased on the basis of documentary evidence of Medieval vineyards in England. Even with this increase, the maximum it showed for the Medieval Warm Period did not reach temperatures recorded in central England in 2007. The MBH99 finding was supported by cited reconstructions by , , and , using differing data and methods. The Jones et al. and Briffa reconstructions were overlaid with the MBH99 reconstruction in Figure 2.21 of the IPCC report. These studies