2011 Plenary Workshop Presentations GFDL's ESM2 Series simulations of coupled carbon, climate and ecosystems John Dunne The CESM: A Framework for Collaborative Research James Hurrell, NCAR Communicating the Credibility of Climate Change Science Jeffrey Keihl, NCAR-CGD Evaluation of Dynamical Cores Proposed for Future Versions of CAM Dave Williamson, NCAR-CGD