Climate and Global Change Atmospheric and Environmental Chemistry Dynamics of the Atmosphere and Other Geophysial Fluids The Paleogeographic Atlas Project High Pressure Geophysics Geochemistry and Cosmochemistry Igneous and Metamorphic Petrology Paleontology and Evolution Other Departments and Related Institutions Affiliated Centers

It is now widely recognized that changes in the global environment are occuring at rates which greatly exceed those which have occured in the geologic past. For example, atmospheric concentrations of greenhouse gases such as carbon dioxide and methane are steadily rising, stratospheric ozone depletion is occuring in both polar regions (the Ozone hole) and at midlatitudes, and there is now evidence for widespread pollution of the lower atmosphere. The potantial effects of these changes on the global climate system and biosphere make this field of global change science one of the most vibrant and exciting disciplines within earth science.

By its nature, the field is highly interdisciplinary. In particular, in order to fully understand the coupled nature of the earth-atmosphere-biosphere system requires that aspects of geophysical fluid dynamics, oceanic and atmospheric chemistry, cloud physics and radiative properties, and glaciaology be well understood.

Relevant Faculty include:

• David Archer, Chemical Oceanography
• Bruce Buffett, Geodynamics
• John E. Frederick, Radiative Transfer
• Douglas R. MacAyeal, Glaciology
• Pamela Martin, Paleoceanography
• Elisabeth J. Moyer, Atmospheric Chemistry
• Noboru Nakamura, Atmospheric Dynamics
• Raymond T. Pierrehumbert, Atmospheric Dynamics
• Ramesh C. Srivastava, Cloud Physics