We have argued this point repeatedly, with the alarmist side saying that everyone should just cede to the authority of the scientists making up the data tables. Climategate showed that HADCRU vigorously adjusted the data and when they were asked to produce the raw data they said they had thrown it away. The Y2K bug fiasco showed that NASA GISS continuously adjusts the data to the point that outside studies using the GISS data set have to define which date of data they used in order for the findings to make sense. While many have called for an audit of temperature data, New Zealand actually forced their climate study organization to answer the tough questions about raw data and the adjustments made and the reasoning behind the adjustments. After a year of squirming and dodging questions the NIWA just gave up! Climate Science Coalition Vindicated | Scoop News turned into this- I wonder what will happen when people decide to find out what is going on with North American data?