The Sixth Assessment Report 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. The meeting to draft the outline of the Sixth Assessment Report took place in Addis Ababa (Ethiopia) in May 2017. The draft outlines were approved by the 46th Session of the Panel in September 2017. More information on the sixth assessment cycle is available here.

The First-Order Draft of the Working Group II contribution to AR6 underwent an expert review  from 18 October to 13 December 2019. The Second-Order Draft was reviewed by experts and governments from 4 December 2020 to 29 January 2021. The Final Government Distribution of the final draft of the report and Government Review of the Summary for Policymakers took place from 1 October to 26 November 2021.