Overview It seems as though nowadays you cannot turn on a television or pick up a newspaper without hearing a story about global warming. Talk about fear, uncertainty, and doubt (FUD)! Th ese headlines illustrate issues ranging from the Earth running completely out of water to California falling oﬀ the continent and becoming an island (sweet, that would give us another coastline … more surf!). Just as the rate of new prognostications has increased, so has the emergence of “experts” with their doom and gloom and their complicated climatological models, charts, and all kinds of stuﬀ that we are supposed to believe. How can you go wrong trusting what Al Gore is telling you? After all, isn’t he the inventor of the Internet?