Rick Santorum surged at the last minute to give Mitt Romney a real run for his money in Tuesday's Iowa caucuses, is less green than his rival, and decidedly nuttier when it comes to climate change. But let's not split hairs here. Both men will staunchly defend fossil fuels, and neither is likely to do much of anything to fight global warming. Mitt Romney has expressed qualified concern about climate change over the years, and then vacillated about how much of it is human-caused and whether we should try to do anything about it. No wobbling of that sort from...