Michael D. Lemonick teaches SHERP's ethics class, called Journalistic Judgment. He received a bachelor's degree in economics from Harvard and a master's in journalism from Columbia. He spent three years at Science Digest magazine, then moved to Time magazine, where he became a senior writer specializing in science. In nearly 21 years at the magazine, he wrote 50 cover stories and innumerable smaller stories on every aspect of science and the environment, including global warming, emerging viruses, the human genome project, particle physics, Biblical archeology, cosmology and many more. Two of his Time covers earned AAAS writing awards, while his 2001 cover story on global warming earned an Overseas Press Club award for international reporting. More recently, he has been blogging for Time.com. He has also written a half-dozen cover stories for Discover magazine and contributed to People, Playboy, Audubon and The Washington Post. He is the author of three books: The Light at the Edge of the Universe (1993); Other Worlds (1997, winner of the American Institute of Physics writing award); and Echo of the Big Bang (2003). He has been teaching a course in science journalism at Princeton since 1998, as well as a freshman seminar on Science and the Media, starting in 1999. In addition, he has twice been a faculty member at the Santa Fe Science Writing Workshop, and served as Science Writer in Residence at the University of Wisconsin-Madison and the Hill Lecturer in Science Journalism at the University of Tennessee. His most recent academic experience was speaking to students at SHERP -- a positive one, which helped convince him to come back to teach.