IPCC: Working Group II extends Sixth Assessment Report schedule

Working Group II of the Intergovernmental Panel on Climate Change (IPCC) has revised the timeline for preparing its contribution to the Sixth Assessment Report (AR6) because of disruption caused by the COVID-19 pandemic.


In the light of these challenges, Working Group II is extending a number of milestones due to be reached in 2020 by around four months. The cut-off date for scientific literature to be submitted for publication, if it is to be included in the assessment, moves to 1 November 2020 from 1 July 2020. The government and expert review of the report’s Second Order Draft will now take place between 4 December 2020 and 29 January 2021, four months later than originally scheduled. The Fourth Lead Author Meeting to prepare the final draft will also be postponed by about four months to March 2021.