Various organisms in the biosphere are keeping a delicate balance and harmony with the environment. From beginning of the previous century, human activities have disturbed the balance and caused many environmental problems. Interdisciplinary knowledge is now required to solve the problems. In 1993 we established a new department in the faculty of science to deal with environmental issues. This department has been dedicated to the better comprehension of the environment through the utilization of basic sciences including chemistry and biology. Many environmental problems are closely related to material movements and chemical reactions. To comprehend these problems, it is vitally important to understand material movement in the natural world, biological reaction and the interaction between organisms and various elements of the environment. Consequently, this department has two courses. One is the Environmental and Analytical Chemistry Course which aims to discuss and resolve environmental problems with chemistry and the other is the Environmental Biology Course which approaches environmental science from the viewpoint of biological science.