The Climate Change Science Program (CCSP) is developing and extending its research activities to support policymaking and adaptive management. Activities to develop decision support resources include a set of “Synthesis and Assessment Products,” active participation in international assessments such as those of the Intergovernmental Panel on Climate Change, improvements in modeling and other resources to facilitate comparison of response options, and development, with users, of tools to support adaptive management and planning. These efforts are building on substantial ongoing efforts of agencies and departments participating in the CCSP. The presentation will provide an overview of the status of CCSP decision support activities, including reflections on the challenges posed. This presentation will serve as an introduction to presentations on two of the Synthesis and Assessment Products that are currently in preparation.