Committee Members

Lead Authors

Biographical Summaries for Lead Authors  

Pat Bartlein is a professor at the University of Oregon , Eugene , OR . His research interests include climatology, paleoclimatology and environmental modeling.   He is an associate editor for the journals Geology and Quaternary Research.

Ed Brook is a professor at Oregon State University in Corvallis, OR.  His specialties include geochemistry and paleoclimatology, with particular focus on the long and short term ice core record of greenhouse gases, including methane.  Dr. Brook currently serves as North American editor for the journal Quaternary Science Reviews and is on the editorial board of the journal Climate of the Past.  He is also  a member of the NSF Office of Polar Programs Science Advisory Committee, co-chairs the International Partnerships in Ice Core Science project (IPICS), and is on the steering committee for the WAIS Divide Ice Coring project in west Antarctica.

Peter Clark is a professor in the Oregon State University department of Geosciences. His research interests include the history and dynamics of former glaciers and ice sheets, and paleoclimatology. Dr. Clark co-edited the American Geophysical Union Monograph titled "; Mechanisms of Millennial-Scale Global Climate Change" published in 2002.

Ed Cook is a Senior Scholar in the Lamont-Doherty Earth Observatory and director of the Lamont Tree Ring Laboratory. Dr. Cook´s research focuses on tree-ring records of drought throughout the world.

Tom Delworth is a research scientist in the climate dynamics and prediction group of NOAA´s National Geophysical Fluid Dynamics Laboratory.  Dr. Delworth´s research involves both models and observations, and focuses on the ocean´s role in climate, in particular decadal to centennial scale climate variability and change.

Shawn Marshall is a glaciologist and climatologist at the University of Calgary, Canada. His research interests include Ice Age climate dynamics as well as present-day glacier-climate interactions and ice sheet modeling. Dr. Marshall is a Scholar in the Canadian Institute for Advanced Research (CIAR) Earth System Evolution Program .

Carrie Morrill is a CIRES scientist at the University of Colorado and a staff member of the NOAA Paleoclimatology Branch of the National Climatic Data Center, and a former NCAR post-doctoral scientist. Dr. Morrill´s research focuses on the paleoclimate record of abrupt climate change and the role of sea ice in the Atlantic meridional overturning circulation.

Richard Seager is a senior research scientist at Lamont-Doherty Earth Observatory, The Earth Institute at Columbia University. His work involves how coupling between the atmosphere and ocean causes climate variability and change around the world on timescales ranging from seasons to glacial–interglacial cycles. Dr. Seager is a principal investigator with the Consortium on the Ocean´s Role in Climate Abrupt Climate Change Studies (CORC-ARCHES).

Konrad Steffen is director of the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado, Boulder. His work involves the study of processes related to climate and cryosphere interaction in polar and alpine regions based on in-situ and satellite measurements, and using climate system modeling to study their sensitivity.

Andrew Weaver is a Professor at the School of Earth and Ocean Sciences at the University of Victoria. Canada. Dr. Weaver's research focuses upon the large-scale ocean circulation and the role of the oceans in climate, with a special emphasis upon three-dimensional numerical modelling. Dr. Weaver is co-chair of the CLIVAR/PAGES Intersection working group, where one of the focus areas is abrupt climate change.