Why are you linking to the Hadley dataset? This is the adjusted(and since "climmategate", discredited) dataset where the original data has been "lost",and they havn't released the source for creating it, you even say so in the comments of your own blog.<p>"You need to read my next post which is coming soon. I don't think this is the source code actually used to generate CRUTEM3. Looks to me like they wrote it specially for this release and it appears to contain a smallish bug to do with the use of suspect data."