Power Line has a great case study on global warming science run amok, with some great email examples from the recently hacked material from the Hadley Climate Research Center in the UK (one of four to have their data used for the UN IPCC report). They center around criticism of a tree ring study that was done to disprove the Medieval Warming Period, and highlight the flagrantly unethical behavior of some higher-ups in the climate science community. A must read.