FrontMatter -- Preface -- Acknowledgments -- Contents -- Summary -- PART 1: Background -- 1 Introduction -- 2 Lessons from Previous Reports on Climate Modeling -- PART 2: Current Issues in Climate Modeling -- 3 Strategies for Developing Climate Models:Model Hierarchy, Resolution, and Complexity -- 4 Scientific Frontiers -- 5 Integrated Climate Observing System and Earth System Analysis -- 6 Characterizing, Quantifying, and Communicating Uncertainty -- 7 Climate Model Development Workforce -- 8 Relationship of U.S. Climate Modeling to Other International and National Efforts -- 9 Strategy for Operational Climate Modeling and Data Distribution -- PART 3: Strategy for Advancing Climate Modeling -- 10 Computational Infrastructure-Challenges and Opportunities -- 11 Synergies Between Weather and Climate Modeling -- 12 Interface with User and Educational Communities -- 13 Strategies for Optimizing U.S. Institutional Arrangements -- 14 A National Strategy for Advancing Climate Modeling -- References -- Appendixes -- Appendix A: Statement of Task -- Appendix B: Community Input -- Appendix C: Biographical Sketches of Committee Members.