Roy Spencer is a climate scientist at the University of Alabama-Huntsville who may be the world’s most important scientist. He has discovered scientific insights and theories that cast great doubt on global warming doctrine. That doctrine has always been dubious and is often defended by attacking the integrity of anyone who dares to raise questions. Spencer is a rare combination of a brilliant scientist and a brave soul willing to risk his livelihood and reputation by speaking plainly. The global warming promoters say we must scrap the world’s energy infrastructure in favor of green energy. They say that burning coal,...