Rath on 21 November 2009
@Sqrl.
Umm, from what I can see is that he is trying to reconcile the divergence between theoretical and actual temperatures. The actual temperature on the instrumental record was pointing upwards, the model was pointing downwards. He changed the model to match the actual temperatures.
It's not a scandalous "We must have it pointing upwards to fool the public", it's a sensible "we must have it pointing upwards as that is what the smoothed instrumental record shows".
Edit: Actually reconcile historical temperatures taken from other sources with instrumental temperatures I think.
