Global warming theory has been around for a while; I learned it as a college student in about 1970. But it didn't get much traction then because the Earth was in a deep freeze. Some years later, environmental hysteria focused on global warming rather than cooling because, coincidentally, the climate started to warm. That warming has stopped, at least for the time being, and many scientists believe that a harsh cooling trend will begin around 2020. If that happens, environmental activists will be urging us to burn all the carbon fuels we can get our hands on in order to stave off the next Ice Age, much as they advocated an international project to paint the polar ice caps black so as to absorb more heat in the 1970s.
Power Line: Endless Winter, Part 2
