The Department of Environmental Engineering of the Graduate School of Engineering, Kyoto University is one of the best and most diverse programs in this research field worldwide. Based on cutting-edge technologies, we tackle actual environmental problems with a strong emphasis on filed work as well as theoretical studies to find practical solutions. Oftentimes our approach to these problems breaks the border between disciplines. That is, interdisciplinary approach is a key feature of this program. We are proud of our diversity and depth of our research activities and believe that our program is ideal for those who are interested in environmental issues.