Review and Scoping process of the Working Group III contribution to the Sixth Assessment Report


All IPCC reports undergo two stages of review. A First-Order Draft is reviewed by experts. Following the expert review, authors develop a Second-Order Draft based on the comments received. This draft then undergoes a second review by both governments and experts. Authors will prepare a Final Draft based on the comments received during the second review. The Final Draft is distributed to governments at the time of the final government review of the Summary for Policymakers.

The First-Order Draft of the Working Group III contribution to AR6 was reviewed by Experts from 13 January to 8 March 2020.

The Second-Order Draft was  reviewed by experts and governments  from  18 January to  14 March 2021.

The Final Government Distribution of the final draft of the report and Government Review of the Summary for Policymakers took place from 29 November 2021 to 30 January 2022.

The Panel considered the Working Group III contribution to the Sixth Assessment Report during a plenary held on 21 March to 4 April 2022.


The scoping meeting for the Sixth Assessment Report (AR6) took place in Addis Ababa (Ethiopia) from 1 to 5 May 2017. The draft outlines were approved by the Panel when it met in September 2017

The approved outline of the Working Group III contribution to the Sixth Assessment Report is available here

A call for nominations for experts to attend the scoping meeting was issued to governments, observer organizations and IPCC bureau members. They were requested to submit their nominations via their focal points before midnight (CET) on 31 October 2016. The deadline was later extended to Monday 14 November 2016

In order to determine robust areas of consideration, participants in the Scoping Meeting had a broad understanding of climate change and related issues, and collectively had expertise in the following areas:

Working Group III

  • Socio-economic scenarios, modelling and transitions at the global, regional, national and local scales including integrated assessment approaches.
  • Energy systems including supply and energy demand sectors (e.g., industry, transport, buildings). Mitigation responses in agriculture, forestry, land use and waste.
  • Consumption patterns, human behavior and greenhouse gas emissions, including economic, psychological, sociological and cultural aspects.
  • Policies, agreements and instruments at the international, national and subnational levels, including those at the city level.
  • Technology innovation, transfer and deployment.
  • Financial aspects of response options

Regional expertise

North America
Central and South America
Polar regions
Small islands

Nominations page



On 21 September 2016, the IPCC Secretariat sent out a pre-scoping questionnaire to governments and observer organizations to identify policy relevant questions and scientific and technical topics to be addressed in the Sixth Assessment Report (deadline: 30 November 2016, extended to 12 December 2016). The responses received were synthesized and made available to the participants of the AR6 Scoping Meeting and the Panel.