Chicken Little has often been invoked by skeptics of global warming. They even recommend a book called “The Sky’s Not Falling! Why It’s OK to Chill About Global Warming.” It’s by – and I’m not making this up – Holly Fretwell. It echoes many conservatives’ beliefs that the government need not take charge. It also is critical of what it deems the scary exaggerations screamed by environmentalists and politicians. That’s all very interesting in light of the debate over the costs of the cap-and-trade bill being debated in Congress. In April, Republicans twisted the study of an MIT economist to produce the whopper that the legislation would cost every household about $3,100. They dubbed this the light switch tax. John Reilly, the MIT economist, protested, saying it would be more like $79. Still, some dim bulbs continued to tout the bogus number.