From the author:
Yikes again, double yikes! What on earth justifies that adjustment? How can they do that? We have five different records covering Darwin from 1941 on. They all agree almost exactly. Why adjust them at all? They’ve just added a huge artificial totally imaginary trend to the last half of the raw data! Now it looks like the IPCC diagram in Figure 1, all right … but a six degree per century trend? And in the shape of a regular stepped pyramid climbing to heaven? What’s up with that?
This doesn't mean that all adjustments are suspect or that climatologists are lying or even that these are falsifications (though you can bet I'd like to know the reasoning behind those adjustments). And over the years, I've become more sympathetic of climatologists' claims (decentralized researchers all saying about the same thing is a good litmus test for truth). But it does highlight the need for publicly available raw data and comprehensive explanations for all the adjustments. If the scientists really want to convince people, transparency is key.