Harm de Blij specializes in geopolitical and environmental issues, and has held named chairs at Georgetown University, Marshall University, and the Colorado School of Mines. Dr. de Blij currently is Distinguished Professor of Geography at Michigan State University, where he also taught throughout the decade of the 1960s. In the interim, he chaired the Geography Department at the University of Miami and served as editor at the National Geographic Society. His advocacy of Geography in the media and on the public lecture circuit has taken him to virtually all corners of the United States; his work in research, teaching, and television has spanned the globe. In 1994 National Geographic Society President Gilbert Grosvenor appointed Dr. de Blij an Honorary Life Member of the Society.