science2017.globalchange.govClimate Science Special Report

Skip to main content About About this Report Guide to this Report Credits Chapters Executive Summary 1: Our Globally Changing Climate 2: Physical Drivers of Climate Change 3: Detection and Attribution of Climate Change 4: Climate Models, Scenarios, and Projections 5: Large-Scale Circulation and Climate Variability 6: Temperature Changes in the United States 7: Precipitation Change in the United States 8: Droughts, Floods, and Wildfire 9: Extreme Storms 10: Changes in Land Cover and Terrestrial Biogeochemistry 11: Arctic Changes and their Effects on Alaska and the Rest of the United States 12: Sea Level Rise 13: Ocean Acidification and Other Ocean Changes 14: Perspectives on Climate Change Mitigation 15: Potential Surprises: Compound Extremes and Tipping Elements Appendix A: Observational Datasets Used in Climate Studies Appendix B: Model Weighting Strategy Appendix C: Detection and Attribution Methodologies Overview Appendix D: Acronyms and Units Appendix E: Glossary Report Downloads View All Report Downloads Full Report PDF Report Figures (.zip) Report Citation (RIS) Fourth National Climate Assessment (NCA4), Volume I This report is an authoritative assessment of the science of climate change, with a focus on the United States. It represents the first of two volumes of the Fourth National Climate Assessment, mandated by the Global Change Research Act of 1990. Recommended Citation Executive Summary Ch. 1: Our Globally Changing Climate Ch. 2: Physical Drivers of Climate Change Ch. 3: Detection and Attribution of Climate Change Ch. 4: Climate Models, Scenarios, and Projections Ch. 5: Large-Scale Circulation and Climate Variability Ch. 6: Temperature Changes in the United States Ch. 7: Precipitation Change in the United States Ch. 8: Droughts, Floods, and Wildfire Ch. 9: Extreme Storms Ch. 10: Changes in Land Cover and Terrestrial Biogeochemistry Ch. 11: Arctic Changes and their Effects on Alaska and the Rest of the United States Ch. 12: Sea Level Rise Ch. 13: Ocean Acidification and Other Ocean Changes Ch. 14: Perspectives on Climate Change Mitigation Ch. 15: Potential Surprises: Compound Extremes and Tipping Elements Appendix A: Observational Datasets Used in Climate Studies Appendix B: Model Weighting Strategy Appendix C: Detection and Attribution Methodologies Overview Appendix D: Acronyms and Units Appendix E: Glossary × Modal U.S. Global Change Research Program 1800 G Street, NW, Suite 9100, Washington, DC 20006 USA Tel: +1 202.223.6262 | Fax: +1 202.223.3065 Contact Us • Credits • Privacy Policy • Site Map Some figures and images are copyright protected. Permission of the copyright owner must be obtained before making use of copyrighted material....