She earned her Ph.D. in geology from the State University of New York, Stony Brook. Her research focuses on paleoceanography, paleoclimate, tracer studies, and geochemistry of sedimentary rocks. Several of her current projects deal with reconstructing ocean circulation patterns at different times, including periods of abrupt climate change. Other projects aim to understand the role of ice sheets in regional and global climate change, including studies of the North Atlantic and circum-Antarctic oceans and Mono Lake. Dr. Hemming is deputy director (education liaison) of the Cooperative Institute for Climate Applications and Research, a research partnership on climate variability and change sponsored by the National Oceanic and Atmospheric Administration and Columbia. She is a member of the American Geophysical Union and the