Government and Expert Review of the Second Order Draft of the Working Group II contribution to the IPCC Sixth Assessment Report

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Organisation: International Panel on Climate Change (IPCC)

The International Panel on Climate Change (IPCC) is currently preparing its Sixth Assessment Report (AR6). During this cycle, the Panel has produced three Special Reports, a Methodology Report on national greenhouse gas inventories and is now working on AR6. More information on the sixth assessment cycle is available here.

AR6 consists of contributions from each of the three IPCC Working Groups and a Synthesis Report (SYR), which integrates the Working Group contributions and the Special Reports produced in the cycle.

A short overview:

  • The meeting to draft the AR6 outline took place in Addis Ababa (Ethiopia) in May 2017.
  • The draft outlines were approved by the 46th Session of the Panel in September 2017.
  • The First Order Draft of the Working Group II contribution to AR6 underwent an expert review (18 October – 13 December 2019). 
  • The Second Order Draft will be available for expert and government review from 4 December 2020 to 29 January 2021. 

Experts are now being sought to help review this Second Order Draft. If you would like to participate or for more information, send an email to

Martine Vanderstraeten, IPCC Focal Point

For more information about the IPCC products and the assessment process: