Explore the Third National Climate Assessment and Highlights on the web or download the report and related materials below.

• Download the full Third National Climate Assessment report (warning, the file is very large)
• Download the Highlights of the Third National Climate Assessment (warning, the file is very large)
• Download the Highlights of the Third National Climate Assessment Report (smaller file)
• Request print copies of the Overview and Highlights of the Third National Climate Assessment (click the link, then Add to Cart)
• Download graphics and presentations by chapter

Overview and Report Findings

• Overview Brochure
• Report Findings Brochure

Climate Trends and Regional Impacts

Climate Trends & Regional Impacts Brochure

• Regional summary: Northeast
• Regional summary: Southeast and Caribbean
• Regional summary: Midwest
• Regional summary: Great Plains
• Regional summary: Southwest
• Regional summary: Northwest
• Regional summary: Alaska
• Regional summary: Hawaii and Pacific Islands

• Sectoral Summary: Agriculture
• Sectoral Summary: Infrastructure

Report Chapters

• Front Matter
• Table of Contents
• Climate Change and the American People

About this Report

1. Overview and Report Findings
2. Our Changing Climate | graphics | presentation

Introduction to the Sectors

3. Water Resources
4. Energy Supply and Use
5. Transportation
6. Agriculture
7. Forests
8. Ecosystems, Biodiversity, and Ecosystem Services
9. Human Health
10. Energy, Water, and Land Use
11. Urban Systems, Infrastructure, and Vulnerability
12. Indigenous Peoples, Lands, and Resources
13. Land Use and Land Cover Change
14. Rural Communities
15. Biogeochemical Cycles

Introduction to the Regions

16. Northeast
17. Southeast and the Caribbean
18. Midwest
19. Great Plains
20. Southwest
21. Northwest
22. Alaska
23. Hawai‘i and U.S. Affiliated Pacific Islands
24. Oceans and Marine Resources
25. Coastal Zone Development and Ecosystems

Introduction to Response Strategies

26. Decision Support: Connecting Science, Risk Perception, and Decisions
27. Mitigation
28. Adaptation
29. Research Needs for Climate and Global Change Assessments
30. Sustained Assessment: A New Vision for Future U.S. Assessments

Appendix 1: Report Development Process
Appendix 2: Information Quality Assurance Process
Appendix 3: Climate Science Supplement
Appendix 4: Climate Science: Frequently Asked Questions
Appendix 5: Scenarios and Models
Appendix 6: Topics for Consideration in Future Assessments

Graphics and Presentations

Graphics are available by chapter as zip files. Presentations for each chapter were prepared by USGCRP staff and are meant to be used by anyone wishing to include information from the NCA in lectures. Each chapter's presentation contains the chapter's key messages and graphics; the notes field includes figure labels and captions.

1. Report Findings presentation (also includes NCA background and process)
2. Our Changing Climate graphics | presentation

Sectors

3. Water Resources graphics | presentation
4. Energy Supply and Use graphics | presentation
5. Transportation graphics | presentation
6. Agriculture graphics | presentation
7. Forests graphics | presentation
8. Ecosystems, Biodiversity, and Ecosystem Services graphics | presentation
9. Human Health graphics | presentation
10. Energy, Water, and Land Use graphics | presentation
11. Urban Systems, Infrastructure, and Vulnerability graphics | presentation
12. Indigenous Peoples, Lands, and Resources graphics | presentation
13. Land Use and Land Cover Change graphics | presentation
14. Rural Communities graphics | presentation
15. Biogeochemical Cycles graphics | presentation

Regions

16. Northeast graphics | presentation
17. Southeast and the Caribbean graphics | presentation
18. Midwest graphics | presentation
19. Great Plains graphics | presentation
20. Southwest graphics | presentation
21. Northwest graphics | presentation
22. Alaska graphics | presentation
23. Hawai‘i and U.S. Affiliated Pacific Islands graphics | presentation
24. Oceans and Marine Resources graphics | presentation
25. Coastal Zone Development and Ecosystems graphics | presentation

Response Strategies

26. Decision Support: Connecting Science, Risk Perception, and Decisions graphics | presentation
27. Mitigation graphics | presentation
28. Adaptation graphics | presentation

Appendix 1: Report Development Process graphics | presentation (also includes Report Findings)
Appendix 3: Climate Science Supplement graphics
Appendix 4: Climate Science: Frequently Asked Questions graphics
Appendix 5: Scenarios and Models graphics