IPCC Fourth Assessment Report (AR4)

Climate Change 2007: The Physical Science Basis


Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change

Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor and
H.L. Miller (eds.).

Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA,

996 pp.



Front Matter

Summary for Policymakers

Technical Summary

Frequently Asked Questions (extracted from chapters below)


Chapter 1 Historical Overview of Climate Change Science

Chapter 2 Changes in Atmospheric Constituents and in Radiative Forcing

Chapter 3 Observations: Surface and Atmospheric Climate Change

Supplementary Material: Appendix 3.B. Techniques, Error Estimation and Measurement Systems (including references)

Chapter 4 Observations: Changes in Snow, Ice and Frozen Ground

Chapter 5 Observations: Oceanic Climate Change and Sea Level

Chapter 6 Palaeoclimate

Supplementary Material: Appendix 6.A. Glossary for Terms Specific to Chapter 6

Chapter 7 Couplings Between Changes in the Climate System and Biogeochemistry

Chapter 8 Climate Models and their Evaluation

Supplementary Material: Appendix 8.A. Supplementary Figures and Tables

Chapter 9 Understanding and Attributing Climate Change

Supplementary Material: Appendices & References

Chapter 10 Global Climate Projections

Supplementary Material: Supplementary Details, Tables & Figures

Figures Showing Individual Model Results for Different Climate Variables

Chapter 11 Regional Climate Projections

Supplementary Material: Appendix 11. Tables, Figures, References


Annexes: (1)Glossary, (2)Authors, (3)Reviewers, (4)Acronyms




Uncertainty Guidance Note for the Fourth Assessment Report


Errata for the Working Group I Fourth Assessment Report (Last updated: 15 June 2012)



Full Report (112MB)

Summary for Policymakers & Technical Summary 

Arabic - Chinese - French - Russian - Spanish