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Intergovernmental Panel on Climate Change (IPCC), Working Group I

Climate Change 2021: The Physical Science Basis. Summary for Policymakers

The approved summary of the IPCC's latest assessment of the physical science of climate change (2021). Statements carry paragraph identifiers (for example B.5.3) and confidence levels. Only short quoted statements and the numbers in them are shown, with the paragraph and page; IPCC figures are never reproduced or redrawn from the report.

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From the producer's terms, checked 2026-10-05; re-checked automatically every week.

Credit we give
IPCC, 2021: Summary for Policymakers. In: Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, pp. 3−32. doi:10.1017/9781009157896.001
Notice
Quoted from the IPCC report with its statement number and page. IPCC material may not be redistributed or altered; the full report is at https://www.ipcc.ch/report/ar6/wg1/.
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Not allowed: we keep a private copy for our own checks and publish its fingerprint.
Cite as
IPCC, 2021: Summary for Policymakers. In: Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 3−32, doi:10.1017/9781009157896.001.

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Status

Programme
AR6 WGI (2021) is a completed assessment; only the IPCC's seventh-cycle Working Group I report will supersede it.
Updates
IPCC assessment cycle, about 6 to 8 years
Last check
Fetched (2026-10-05T11:03:33Z)