Includes bibliographical references (pages 49-55).

1. Introduction: Workshop themes; Plenary presentations: recent insights in polar ecosystem science -- 2. Frontier Questions In Climate Change And Polar Ecosystems: Will a rapidly shrinking cryosphere tip polar ecosystems into new states?; What are the key polar ecosystem processes that will be the "First Responders" to climate forcing?; What are the bi-directional gateways and feedbacks between the poles and the global climate system?; How is climate change altering biodiversity in Polar regions and what will be the regional and global impacts?; How will increases in human activities intensify ecosystem impacts in the Polar regions? -- 3. Methods And Technologies To Address The Frontier Questions: Emerging technologies; Sustained long-term observations; Data synthesis and management; Science-to-society interface: data dissemination and outreach -- 4. Final Thoughts -- Appendixes: A. Workshop agenda & statement of task; B. Plenary abstracts; C. Participants; D. Biographical sketches of committee members.