Could this be the first signs of the classic "Okay, so nothing's happening now, but it will years from now, promise!" tactic? (See also: the ozone hole).

They could be right, of course.

But on the other hand, I can't help but notice that someone suddenly came up with something to neutralize anything anyone can say about actual temperature measurements, buying themselves ten more years where they can claim that flat, or even cooling, temperatures mean nothing.

The beauty of this is that if you work at it, and keep those computers humming, you can keep pushing that dotted line to the right as time goes by. You can never be proven wrong. By 2020, if nothing changes, then certainly the catastrophe will happen in 2050. Of course by then, a lot of water, and a lot of crap, will have flowed under the bridge.