The Working Group I contribution to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) provides a comprehensive assessment of the physical science basis of climate change since 2007 when the Fourth Assessment Report (AR4) was released.
Please use the following reference to the whole report: IPCC, 2013: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 1535 pp.
The designations employed and the presentation of material on maps do not imply the expression of any opinion whatsoever on the part of the Intergovernmental Panel on Climate Change concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
Copies of the printed report are available from Cambridge University Press.
Translation of the WGI AR5 SPM TS FAQ Volume from English into the other five official languages of the United Nations was done by translators working for the WMO Language, Conference and Publishing Services Department. The assistance of scientists from the WGI chapter teams who acted as scientific translation editors for each language is gratefully acknowledged.
A number of countries have undertaken translations of the WGI AR5 SPM TS FAQ Volume into languages that are not official languages of the United Nations. IPCC welcomes these initiatives but would note that the translations have been prepared under the responsibility of the respective country or institutions. The IPCC does not assume any responsibility for the accuracy of these translations into non-UN languages. In working to achieve the widest possible dissemination of IPCC knowledge, the IPCC is pleased to assist in making these translations available.
Translation of the WGI AR5 SPM from English into the other five official languages of the United Nations was done by translators working for the WMO Language, Conference and Publishing Services Department. The assistance of scientists from the WGI chapter teams who acted as scientific translation editors for each language is gratefully acknowledged.
A number of countries have undertaken translations of the SPMs into languages that are not official languages of the United Nations. IPCC welcomes these initiatives but would note that the translations have been prepared under the responsibility of the respective country or institutions. The IPCC does not assume any responsibility for the accuracy of these translations into non-UN languages. In working to achieve the widest possible dissemination of IPCC knowledge, the IPCC is pleased to assist in making these translations available.
Translation of the WGI AR5 FAQs from English into the other five official languages of the United Nations was done by translators working for the WMO Language, Conference and Publishing Services Department. The assistance of scientists from the WGI chapter teams who acted as scientific translation editors for each language is gratefully acknowledged.
A number of countries have undertaken translations of the FAQs into languages that are not official languages of the United Nations. IPCC welcomes these initiatives but would note that the translations have been prepared under the responsibility of the respective country or institutions. The IPCC does not assume any responsibility for the accuracy of these translations into non-UN languages. In working to achieve the widest possible dissemination of IPCC knowledge, the IPCC is pleased to assist in making these translations available.
A number of countries have undertaken translations of the headline statements into languages that are not official languages of the United Nations. IPCC welcomes these initiatives but would note that the translations have been prepared under the responsibility of the respective country or institutions. The IPCC does not assume any responsibility for the accuracy of these translations into non-UN languages. In working to achieve the widest possible dissemination of IPCC knowledge, the IPCC is pleased to assist in making these translations available.
The Fifth Assessment Report (AR5) was prepared according to Appendix A to the Principles Governing IPCC Work on Procedures for the Preparation, Review, Acceptance, Adoption, Approval and Publication of IPCC Reports. In accordance with this, the drafts of the Working Group contribution to the AR5 that were submitted for expert and/or government review, the expert and government review comments received, and the author responses to these comments are available here. These drafts, review comments, and author responses are not the results of the assessment and may not be cited, quoted, or distributed as such. Only the approved and accepted Report may be cited or quoted as the results of the assessment.
Summary for Policymakers
First Order Draft (FOD) / FOD Comments and Responses / Final Draft (FD) / FD Comments
General comments on the entire report
FOD Comments and Responses / Second Order Draft (SOD) Comments and Responses
Technical Summary
FOD Draft / FOD Comments and Responses / Final Draft
Chapter 1 – Introduction
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 2 – Observations: Atmosphere and Surface
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 3 – Observations: Ocean
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 4 – Observations: Cryosphere
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 5 – Information from Paleoclimate Archives
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 6 – Carbon and Other Biogeochemical Cycles
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 7 – Clouds and Aerosols
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 8 – Anthropogenic and Natural Radiative Forcing
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 9 – Evaluation of Climate Models
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 10 – Detection and Attribution of Climate Change: from Global to Regional
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 11 – Near-term Climate Change: Projections and Predictability
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 12 – Long-term Climate Change: Projections, Commitments and Irreversibility
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 13 – Sea Level Change
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Chapter 14 – Climate Phenomena and their Relevance for Future Regional Climate Change
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Annex I: Atlas of Global and Regional Climate Projections
FOD Draft / FOD Comments and Responses / SOD Draft / SOD Comments and Responses / Final Draft
Annex II: Climate System Scenario Tables
Annex III: Glossary
Review Editor Reports
SUMMARY FOR POLICYMAKERS (approved)
Approved Summary for Policymakers (IPCC-XXXVI/Doc.3)
Correction to approved SPM (pre-publication)
FINAL DRAFT
Changes to the Underlying Scientific/Technical Assessment (IPCC-XXXVI/Doc.4)
Complete Underlying Scientific/Technical Assessment (available soon)
The Final Government Draft (FGD) is the version from 7 June 2013.