By Thomas Sowell Townhall.Com Britain’s Channel 4 has produced a devastating documentary titled “The Great Global Warming Swindle.” It has apparently not been broadcast by any of the networks in the United States. But, fortunately, it is available on the Internet. Distinguished scientists specializing in climate and climate-related fields talk in plain English and present readily understood graphs showing what a crock the current global warming hysteria is. These include scientists from MIT and top-tier universities in a number of countries. Some of these are scientists whose names were paraded on some of the global More…