This Assessment has involved thousands of Americans in an ongoing national dialogue about climate change and its impacts.

1. Scenarios for climate variability and change; 2. Future vegetation and biogeochemical dynamics - scenarios for the conterminous United States; 3. Socioeconomic context for climate impact assessment; 4. Potential consequences of climate variability and change for the Northeastern United States; 5. Potential consequences of climate variability and change for the Southeastern United States; 6. Potential consequences of climate variability and change for the Midwestern United States; 7. Potential consequences of climate variability and change for the Great Plains; 8. Potential consequences of climate variability and change for the Western United States; 9. Potential consequences of climate variability and change for the Pacific Northwest; 10. Potential consequences of climate variability and change for Alaska; 11. Potential consequences of climate variability and change for the US-affiliated islands of the Pacific and Caribbean; 12. Potential consequences of climate variability and change for Native Peoples and Homelands; 13. Climate change and agriculture in the United States; 14. Potential consequences of climate variability and change for the water resouces of the United States; 15. Potential consequences of climate variability and change for human health in the United States; 16. Potential consequences of climate variability and change on coastal areas and marine resources; 17. Potential consequences of climate variability and change for the forests of the United States; Appendix: research directions.