2010 PCWG Workshop Presentations Announcements and Updates Radiative Forcing of Ponds and Aerosols in CCSM4 Marika Holland The Low Resolution CCSM4 and Other Updates Dave Bailey Arctic Climate Feedbacks in Coupled Models using CAM4 / CAM5 Jen Kay 21st Century Polar Response in CCSM4 Steve Vavrus Arctic Freshwater Budgets in the CCSM Alexandra Jahn Sea Ice Thickness Sensitivities to Icebergs and More Elizabeth Hunke Modeling Microphysics and Salinity Evolution of Sea Ice Adrian Turner Incorporation of a Physically-based Melt Pond Scheme into the Sea Ice Component of a Climate Model Daniela Flocco