Denial is a very interesting topic. The example Monbiot is using is against those who claim climate change doesn't exist. I suspect most people now don't hold that view, although certainly a significant and vociferous minority certainly still do.
But the subtler form of denial is where you accept climate change, but simply refuse to take it as seriously as it deserves. An example from Monbiot's article is:
In the political world - at the climate talks in Poznan, for instance - our governments seem to be responding to something quite different, a minor nuisance that can be addressed in due course.
And I think this is part of the mass delusion/denial that most people suffer from. The other one is of course the unwavering faith in the Government: "When climate change gets really serious the government will sort it out". That kind of thinking, often held with the simultaneous contradictory belief that politicians are corrupt, lying morons, lets one free to do whatever one wants with no responsibility for the problem at all.
The outright denier is easy to spot and you can get your teeth into the debate and present the other side of the story. However these subtler forms are more difficult to spot and easier to overlook. And my impression is that they're much more widely held than the outright climate denial and thus more pernicious.
BTW George Marshall also has a web site called
Climate Denial and there's a
good YouTube vid of him talking about it (possibly at one of the Climate Camps) that we could show at on of the screenings (about 4 mins I think)
plus other stuff by him.