Bloomberg: I am in the unpleasant position of believing that climate change is a real problem, and also believing that we are very unlikely actually to do anything about it. The collective action problem is just too hard. As recession-plagued Europe pulls back on its carbon-reduction efforts, Michael OHare seems to be in the same camp: Not only will a lot of Europe around the edges be going under water, but a lot more will be Arctifying while the rest of the world broils. This pullback is not surprising,...