Part I. Concepts and Insights -- 1. Citizenship participation in sustainability assessments -- 2. Contexts of citizen participation -- 3. Models as metaphors -- 4. Collage processes and citizens' visions for the future -- 5. Citizen interaction with computer models -- 6. Citizens' reports on climate strategies -- Part III. Further Forms of Participation -- 7. Venture capital and climate policy -- 8. COOL : exploring options for CO2 reduction in a participatory mode -- 9. Expert stakeholder participation in the Thames region -- 10. On the art of scenario development -- Part IV. Future Perspectives -- 11. From projects to program in integrated assessment research -- 12. Citizen participation and developing country agendas -- 13. Linking the citizen to governance for sustainable climate futures.