25 Facts About IPCC

The IPCC is governed by its member states, which elect a bureau of scientists to serve for the duration of an assessment cycle ; the bureau selects experts nominated by governments and observer organisations to prepare IPCC reports.

The IPCC is supported by a secretariat and various "Technical Support Units" from specialised working groups and task forces.

IPCC provides objective and comprehensive scientific information on anthropogenic climate change, including the natural, political, and economic impacts and risks, and possible response options.

IPCC is an internationally accepted authority on climate change, and its work is widely agreed upon by leading climate scientists as well as governments.

The IPCC shared the 2007 Nobel Peace Prize with Al Gore for contributions to the human understanding of climate change.

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In 2015, the IPCC began its sixth assessment cycle, to be completed in 2022.

On 28 February 2022, the IPCC released its Working Group II report on impacts and adaptation, the second of four parts of its Sixth Assessment Report.

IPCC developed from an international scientific body, the Advisory Group on Greenhouse Gases set up in 1986 by the International Council of Scientific Unions, the United Nations Environment Programme, and the World Meteorological Organization to provide recommendations based on current research.

Pursuant to its governing principles, the IPCC conducts its assessments on a "comprehensive, objective, open and transparent basis" that encompasses all "scientific, technical and socioeconomic information relevant to understanding the scientific basis" of climate change.

IPCC is currently chaired by Korean economist Hoesung Lee, who has served since 8 October 2015 with the election of the new IPCC Bureau, along with three vice-chairs, Youba Sokona, Ko Barrett and Thelma Krug .

IPCC receives funding through a dedicated trust fund, established in 1989 by the United Nations Environment Programme and the World Meteorological Organization .

IPCC has published five comprehensive assessment reports reviewing the latest climate science, as well as a number of special reports on particular topics.

IPCC published its First Assessment Report in 1990, a supplementary report in 1992, a Second Assessment Report in 1995, a Third Assessment Report in 2001, a Fourth Assessment Report in 2007 and a Fifth Assessment Report in 2014.

The IPCC is currently preparing its Sixth Assessment Report, which is being released in stages and will be completed in 2022.

Already in the Fifth Assessment Report, the IPCC had enhanced its communications activities, for instance by making the approved report and press release available to registered media under embargo before the release, and expanding its outreach activities with an outreach calendar.

At the start of the Sixth Assessment Report cycle, the IPCC held an Expert Meeting on Communication in February 2016, bringing together members of the old and new Bureau and Technical Support Units with communications experts and practitioners.

Papers and electronic files of certain working groups of the IPCC, including reviews and comments on drafts of their Assessment Reports, are archived at the Environmental Science and Public Policy Archives in the Harvard Library, as well as on the IPCC website.

In December 2007, the IPCC was awarded the Nobel Peace Prize "for their efforts to build up and disseminate greater knowledge about man-made climate change, and to lay the foundations for the measures that are needed to counteract such change".

Since 2010, the IPCC has come under yet unparalleled public and political scrutiny.

Some critics have contended that the IPCC reports tend to be conservative by consistently underestimating the pace and impacts of global warming, and report only the "lowest common denominator" findings.

Political influence on the IPCC has been documented by the release of a memo by ExxonMobil to the Bush administration, and its effects on the IPCC's leadership.

The lockstep situation of the IPCC is having built a broad science consensus while states and governments still follow different, if not opposing goals.

Rajendra Pachauri, the IPCC chair, admitted at the launch of this report that since the IPCC began work on it, scientists have recorded "much stronger trends in climate change", like the unforeseen dramatic melting of polar ice in the summer of 2007, and added, "that means you better start with intervention much earlier".

In May 2010, Pachauri noted that the IPCC currently had no process for responding to errors or flaws once it issued a report.

Panel advised that the IPCC avoid appearing to advocate specific policies in response to its scientific conclusions.

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