It's been nearly twenty years since scientists started pulling on politicians' coats about global warming (or was it politicians who started pulling on scientists' coats?) and twenty years since the world's politicians set up the United Nations' Intergovernmental Panel on Climate Change -- known to headline writers as the IPCC.  Sterling Burnett at the Washington Times summarises twenty years of IPCC science -- what have they got right? how much have they got wrong? why so?  See: Climate Panel in the Hot Seat.