Well, of course. The dominant meme has been that the world is getting hotter and will one of these days spike up to some hellish temperature, the poles will melt, and we’ll all die. Alongside it there’s always been the rather opposite scenario that says that man-caused CO2 emissions will lead to a new ice -age. It’s received considerably less traction, and seems to completely contradict the dominant strain of alarmism; yet the global warming crowd doesn’t want to discount it because it has all the necessary elements for any good climate scare: it’s all our fault, and socialism is the only solution.