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The PDF is the official version of the Second State of the Carbon Cycle Report.

Second State of the Carbon Cycle Report

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Highlights

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Preface

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Executive Summary

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Section I: Synthesis

Ch. 1: Overview of the Global Carbon Cycle

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Ch. 2: The North American Carbon Budget

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Section II: Human Dimensions of the Carbon Cycle

Ch. 3: Energy Systems

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Ch. 4: Understanding Urban Carbon Fluxes

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Ch. 5: Agriculture

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Ch. 6: Social Science Perspectives on Carbon

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Ch. 7: Tribal Lands

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Section III: State of Air, Land, and Water

Ch. 8: Observations of Atmospheric Carbon Dioxide and Methane

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Ch. 9: Forests

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Ch. 10: Grasslands

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Ch. 11: Arctic and Boreal Carbon

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Ch. 12: Soils

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Ch. 13: Terrestrial Wetlands

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Ch. 14: Inland Waters

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Ch. 15: Tidal Wetlands and Estuaries

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Ch. 16: Coastal Oceans and Continental Shelves

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Section IV: Consequences and Ways Forward

Ch. 17: Biogeochemical Effects of Rising Atmospheric Carbon Dioxide

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Ch. 18: Carbon Cycle Science in Support of Decision Making

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Ch. 19: Future of the North American Carbon Cycle

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Appendices

Appendix A: Report Development Process

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Appendix B: Information Quality in the Assessment

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Appendix C: Selected Carbon Cycle Research Observations and Measurement Programs

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Appendix D: Carbon Measurement Approaches and Accounting Frameworks

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Appendix E: Fossil Fuel Emissions Estimates for North America

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Appendix F: Acronyms, Abbreviations, and Units

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Appendix G: Glossary

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2017-2018 NAS and Public Review of the Fourth Order Draft

National Academy of Sciences (NAS) 2017 Review of the Fourth Order Draft of SOCCR2

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Response to NAS Review Report from SOCCR2 Authors

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Public Comments on Fourth Order Draft of SOCCR2 and Response from Authors

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