The Left has positioned themselves perfectly--scare up a storm about Global Warming, say that instead of things getting warmer (as the name implies), they will actually get *colder*...MUCH colder. Then when the Ice Age hits--something that is predictable and has precedent, they can say "See, we told you so!" and ignore all the science behind it. The Average Chump will listen to the Left and become one of their sheep...
I think you are dead on. By crying hyterically, the left is in a position to claim success whatever change happens, heating or cooling.