J. Perry Gustafson
is a currently an Adjunct Professor of Plant Sciences at the University of Missouri. He is the author or co-author of many books, including Gene Manipulation in Plant Improvement
. Peter H. Raven
is President Emeritus of the Missouri Botanical Garden and George Engelmann Professor of Botany Emeritus at Washington University in St. Louis, and recipient of the National Medal of Science. He has written or coauthored numerous books. Paul R. Ehrlich
is Bing Professor of Population Studies Emeritus and President, Center for Conservation Biology, Stanford University. He is author of The Population Bomb
and is a Royal Swedish Academy of Sciences, Crafoord Prize recipient.