Charles M. Wynn received his B.Ch.E. at City College of New York, and his M. S. and Ph.D. at the University of Michigan. Wynn is currently a chemistry professor at Eastern Connecticut State College. Wynn co authored The Five Biggest Ideas in the World, a book about the five major scientific disciplines: physics, chemistry, astronomy, earth science, and biology.
G. Tyler Miller has written 62 textbooks for introductory courses in environmental science, basic ecology, energy, and environmental chemistry. Since 1975, Miller's books have been the most widely used textbooks for environmental science in the United States and throughout the world. They have been used by almost three million students and have been translated into eight languages. Miller has a professional background in chemistry, physics, and ecology. He has a PhD from the University of Virginia and has received two honorary doctoral degrees for his contributions to environmental education. He taught college for 20 years, developed one of the nation's first environmental studies programs, and developed an innovative interdisciplinary undergraduate science program before deciding to write environmental science textbooks full time in 1975. Currently, he is the president of Earth Education and Research, which is devoted to improving environmental education.