'James Hansen and USHCN fixed this in 2000, and made temps do what they were supposed to do. After the adjustment, 1934 and 1998 got relatively shifted by 0.7C. A move which would make Bernie Madoff jealous. So how did they do this? Mainly by adding on to post 1960 temperatures. Mann replaced the tree ring data post 1960 with the adjusted thermometer data. Then he blamed his and Hansen's junk science on CO2 affecting the trees'