Bret Stephens takes a look at the new book "SuperFreakonomics" and its critics.

Suppose for a minute—which is about 59 seconds too long, but that's for another column—that global warming poses an imminent threat to the survival of our species. Suppose, too, that the best solution involves a helium balloon, several miles of garden hose and a harmless stream of sulfur dioxide being pumped into the upper atmosphere, all at a cost of a single F-22 fighter jet.

Good news, right? Maybe, but not if you're Al Gore or one of his little helpers.

Read the whole thing.