S.Fred Singer, founder of the U.S. Weather Service, writes: "While most people still worry about global warming, I am more concerned about the next Ice Age. A glaciation would present a serious problem for survival of our present civilization, akin to a nuclear winter that many worried about 30 years ago. Nuclear winter is all fantasy, of course; but ice ages are for real." (To access click on Newsroom, then click on Commentary Articles in scroll down list)