Paul Ehrlich may not be a household name, but this troubadour of doom greatly has influenced the Left. His book, The Population Bomb, predicted disastrous famines. "In the 1970s and 1980s hundreds of millions of people will starve to death in spite of any crash programs embarked upon now," he predicted. Not only did Ehrlich prove to be a Chicken Little about overpopulation, he also claimed in a 1975 newsletter (published by the Federation of American Scientists) that "giving society cheap, abundant energy at this point would be equivalent to giving an idiot child a machine gun." Surprisingly, Ehrlich's thinking...