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Executive Summary

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Climate Science Special Report

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The PDF is the official version of the Climate Science Special Report

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About this Report

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Guide to this Report

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Executive Summary

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Ch. 1: Our Globally Changing Climate

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Ch. 2: Physical Drivers of Climate Change

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Ch. 3: Detection and Attribution of Climate Change

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Ch. 4: Climate Models, Scenarios, and Projections

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Ch. 5: Large-Scale Circulation and Climate Variability

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Ch. 6: Temperature Changes in the United States

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Ch. 7: Precipitation Change in the United States

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Ch. 8: Droughts, Floods, and Wildfire

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Ch. 9: Extreme Storms

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Ch. 10: Changes in Land Cover and Terrestrial Biogeochemistry

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Ch. 11: Arctic Changes and their Effects on Alaska and the Rest of the United States

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Ch. 12: Sea Level Rise

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Ch. 13: Ocean Acidification and Other Ocean Changes

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Ch. 14: Perspectives on Climate Change Mitigation

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Ch. 15: Potential Surprises: Compound Extremes and Tipping Elements

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Appendix A: Observational Datasets Used in Climate Studies

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Appendix B: Model Weighting Strategy

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Appendix C: Detection and Attribution Methodologies Overview

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Appendix D: Acronyms and Units

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Appendix E: Glossary

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Public Reviews

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Public Comment Period

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Peer Review by the National Academies of Sciences, Engineering, and Medicine

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Response to the Academies Review

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