Sharon Rady Rolfes received her MS in nutrition and food science from Florida State University. She is a founding member of Nutrition and Health Associates, an information resource center that maintains a research database on more than 1,000 nutrition-related topics. She has taught at Florida State University and coauthored several college nutrition textbooks, including UNDERSTANDING NUTRITION, and UNDERSTANDING NORMAL AND CLINICAL NUTRITION. In addition to writing, she serves as a consultant for various educational projects. Her volunteer work includes delivering food to the hungry and homeless in her community. She maintains her registration as a dietitian nutritionist and her membership in the Academy of Nutrition and Dietetics. Ellie Whitney grew up in New York City and received her B.A. and Ph.D. degrees in English and Biology at Harvard and Washington Universities. She taught at both Florida State University and Florida A&M University, wrote numerous newspaper columns on environmental matters for the Tallahassee Democrat, and coauthored almost a dozen college textbooks on nutrition, health, and related topics, many of which repeatedly reappear as new editions. She spent three decades exploring outdoor Florida and studying its ecology, and then co-wrote PRICELESS FLORIDA: NATURAL ECOSYSTEMS AND NATIVE SPECIES. Now retired, and more concerned about climate change than any other issue, she volunteers full-time for the nonpartisan national nonprofit Citizens Climate Lobby.