2012 PCWG Workshop Presentations Arctic 21st century climate projections and feedbacks using CESM Jen Kay, NCAR-CGD Simulations of extreme Arctic cyclones Steve Vavrus Arctic phenological changes in CLM Matt Higgins Arctic clouds in HadGEM2 Jeff Ridley Processes controlling aerosol transport to high latitudes and the cloud response in CESM1 Phil Rasch The impact of Arctic clouds on radiative fluxes using CAM5 Jason English, NCAR-CGD What sets the sea ice extent in the Southern Ocean? Dave Bailey, NCAR-CGD An implementation of icebergs in CICE Darin Comeau Elastic-decohesive rheology in CICE Kara Peterson Sea ice metrics in CMIP5 Detelina Ivanova