'While a politician might be faulted for pushing a particular agenda that serves his own purposes, who can fault the impartial scientist who warns us of an imminent global-warming Armageddon? After all, the practice of science is an unbiased search for the truth, right? The scientists have spoken on global warming. There is no more debate. But let me play devil’s advocate. Just how good is the science underpinning the theory of manmade global warming? My answer might surprise you: it is 10 miles wide, but only 2 inches deep.'