Imagine, if you can, a modern society in which scientists positing theories contrary to those accepted by agents of the government are declared heretics and swiftly punished. Ray Bradbury imagined one in his novel “Fahrenheit 451,” as did Pierre Boulle in “Planet of the Apes.” Unfortunately, Al Gore has also envisioned such a culture – ours. Gore first introduced us to his one-time Harvard professor, Dr. Roger Revelle in his 1992 book, “Earth in the Balance,“ and refers to him again in his new film, "An Inconvenient Truth.” He credits the professor with being the man who originally influenced his...