STEVE NADIS is a Contributing Editor to Astronomy Magazineand a freelance writer. In addition to Astronomy, he has published articles in Nature, Science, Scientific American, New Scientist, Technology Review, The Atlantic Monthly, and other magazines. He has written or contributed to about two dozen books, including Energy Strategies (1980), Beyond the Freeze(1982), and Car Trouble (1993). A former staff researcher for the Union of Concerned Scientists, Nadis has also been a research fellow at MIT and a consultant to the World Resources Institute, the Woods Hole Oceanographic Institution, and WGBH/NOVA. He has given numerous talks at colleges and universities and made many radio appearances.