Michael A. Kruge is Professor of Earth and Environmental Studies at Montclair State University in New Jersey. He was formerly Associate Dean of the College of Science and Mathematics at MSU, Professor and Chair in the Department of Geology at Southern Illinois University, Carbondale, and a Geochemist for Standard Oil (Ohio)/British Petroleum. He holds a Ph.D. in Geology from the University of California, Berkeley (1985). His research interests include: Environmental geochemistry and forensics of organic contaminants in sediments. Marine, estuarine and lacustrine biogeochemistry. Geochemistry of peat. Fossil organic matter as indicator of environmental change. Applications of analytical pyrolysis-gas chromatography/mass spectrometry. Biological marker compounds and polycyclic aromatic hydrocarbons in, petroleum, petroleum source rocks, oil shales, coal and sediments. Nature of organic sulfur in fossil fuels, a precursor of acid rain. He is the author of about fifty peer-reviewed scientific publications.