Frederic R. Siegel is Professor Emeritus at The George Washington University. His books Applied Geochemistry (1974), Geoquimica Aplicada (1991), Natural and Anthropogenic Hazards in Development Planning (1996), Environmental Geochemistry of Potentially Toxic Metals ((2001/2002), Demands of Expanding Populations and Development Planning (2008), and Countering 21st Century Social-Environmental Threats to Growing Global Populations reflect Dr. Siegel’s cumulative teaching and research experience in marine, exploration, and environmental geochemistry, and his work to alleviate or eliminate environmental problems related to physical, social, chemical, and economic conditions associated with planned development projects.