Currently 75 students are pursuing doctoral degrees within the School, creating a vibrant and dynamic intellectual community. Research is being conducted on almost every continent. Students pursue questions that often span disciplinary boundaries, and have both social and natural science dimensions.
The Doctor of Philosophy (Ph.D.) degree is conferred through the Yale Graduate School of Arts and Sciences. Work toward this doctoral degree is directed by the Environment Department of the Graduate School, which is composed of the faculty of the School of the Environment.