This is very interesting. Liberals try to rationalize a conclusion that is contrary to common acceptable thought. This gives them the feeling that they are smarter than the average bear. Here is a lefty taking an opposing view to global warming because he thinks that is the accepted norm.
Nah, what this actually means is the higher operatives of the Communist Party notice that global warming has jumped the shark, and are preparing the faithful for retreat. They can't call it a loss so they are preparing a position for the "splitters" who will then say "we told you so" along with the right.
Mind, the greens will go down with the ship - they've strapped themselves to this particular mast. But the redder sort are starting to hedge their bets.