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IPCC Fifth Assessment Report

intergovernmental report on climate change

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 9, 2026
Entity authorityQ3429705 ↗
Source-derived summary

The Fifth Assessment Report (AR5) of the United Nations Intergovernmental Panel on Climate Change (IPCC) is the fifth in a series of such reports and was completed in 2014. As had been the case in the past, the outline of the AR5 was developed through a scoping process which involved climate change experts from all relevant disciplines and users of IPCC reports, in particular representatives from governments. Governments and organizations involved in the Fourth Report were asked to submit comments and observations in writing with the submissions analysed by the panel. Projections in AR5 are based on "Representative Concentration Pathways" (RCPs). The RCPs are consistent with a wide range of possible changes in future anthropogenic greenhouse gas emissions. Projected changes in global mean surface temperature and sea level are given in the main RCP article.

The IPCC Fifth Assessment Report followed the same general format as the Fourth Assessment Report, with three Working Group reports and a Synthesis report. The report was delivered in stages, starting with the report from Working Group I in September 2013. It reported on the physical science basis, based on 9,200 peer-reviewed studies. The Synthesis Report was released on 2 November 2014, in time to pave the way for negotiations on reducing carbon emissions at the UN Climate Change Conference in Paris during late 2015.

Editorial summary

“IPCC Fifth Assessment Report” enters the record as intergovernmental report on climate change. Crown Archives preserves that source wording while asking what IPCC, Fifth and Assessment can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2014, 2013, 2015—that can be checked directly. The authority record carries competing date values—2013-09-30, 2014-11-02—which should remain separate until their references and qualifiers are resolved. Its strongest next move is a source search built around IPCC, Fifth and Assessment.
Editorial analysis

Why this record matters

“IPCC Fifth Assessment Report” is worth following because a concise public description often conceals a longer documentary argument. Here, IPCC, Fifth and Assessment provides the most credible route into that argument.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 9, 2026. The linked authority identifier is Q3429705. None of the 3 selected statements returned an explicit reference. The first chronological checks are 2014, 2013 and 2015.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

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Source & attribution

This entry incorporates text from “IPCC Fifth Assessment Report” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.