The Program in Atmospheric and Oceanic Sciences (AOS) offers graduate study under the sponsorship of the Department of Geosciences. The Princeton AOS graduate program emphasizes theoretical studies and numerical model studies of the global climate system. With its activities in physical and chemical oceanography, paleoclimatology, and atmospheric sciences, the AOS Program provides a comprehensive program of courses and seminars. The AOS program benefits from access to the research capabilities of the Geophysical Fluid Dynamics Laboratory (GFDL) of the National Oceanic and Atmospheric Administration (NOAA). Many GFDL scientists are active in the AOS program as lecturers, and students in the program have access to major supercomputer resources within GDFL for their research. The AOS program sponsored by the Department of Geosciences collaborates with GDFL. The flexible graduate program offers students opportunities for research and courses in a wide range of disciplines, including geophysical fluid dynamics, atmospheric physics, atmospheric chemistry, biogeochemistry of the land and ocean, atmospheric modeling, ocean modeling, atmosphere ocean dynamics, climate dynamics, coupled air-sea interactions, global climate change, and paleo-climate. Students can explore climate- and air pollution-related policy through the Science, Technology, and Environmental Policy (STEP) Program at the Princeton School of Public and International Affairs and the Princeton High Meadows Environmental Institute.