Curiouser and curiouser.
Monckton, whose original article sparked these musings, responds to Monbiot's rebuttal here.
Real Climate gets down to the nitty gritty here.
I still think that Fred Pearce has the best discussion of it.
"What makes a subject hard to understand - if it's something significant and important - is not that before you can understand it you need to be specially trained in abstruse matters, but the contrast between understanding the subject and what most people want to see. Because of this the very things which are most obvious may become the hardest of all to understand. What has to be overcome is a difficulty having to do with the will, rather than with the intellect." (Wittgenstein, 1931)