The primary mission of the Doctor of Philosophy degree program in Environmental Sciences at Tennessee Technological University is to advance, through both classroom instruction and research, the education of students in areas of national and international need in relation to the environment. It offers a concentration in both biology and chemistry but emphasizes the solution of complex environmental problems using an interdisciplinary approach. This is accomplished through coursework in biology, chemistry, geology, agriculture, and sociology. Our mission is to use an interdisciplinary approach that insures that students become aware of a wide range of environmental concerns and that their research includes a breadth of environmental understanding beyond the boundaries of a particular discipline. The ultimate goal of the program is to prepare students for careers in research, management, government service, teaching, and other areas where they can make productive contributions to the solution of environmental problems.