2010 PWG Workshop Presentations The Role of GCM Topography in Glacial Inception Steve Vavrus Climate, Air-sea Carbon Fluxes, and Shifts in Snow Cover in a Transient Simulation of the Last Glacial Inception with CCSM4 Keith Moore Preliminary Results from Water-Isotope enabled CAM3 Simulations for the Last Glaciation Esther Brady Simulating and Understanding the Abrupt Transition into the African Humid Period Bette Otto-Bliesner Carbon Cycle Response to a Collapse of the North Atlantic Overturning Circulation Fortunat Joos Centennial-scale Climate Change from Decadally-paced Explosive Volcanism: A Coupled Sea-Ice / Ocean Mechanism Yafang Zhong The CCSM4 Low Resolution Model Chrisitine Shields CCSM Last Millennium Simulation Laura Landrum