Published: 04 Jan 2021

The Intergovernmental Panel on Climate Change (IPCC) is currently working on its next comprehensive report, the Sixth Assessment Report (AR6). Reviews ensure that IPCC reports cover the most up to date scientific, technical and socio-economic findings, and are representative of a broad range of independent expertise from developed and developing countries. Drafts of Working Group I, II & III contributions open for Expert Review are indicated on this page.

Working Group II – Impacts, Adaptation & Vulnerability

The Intergovernmental Panel on Climate Change (IPCC) has opened the Second-Order Draft of the Working Group II contribution to the Sixth Assessment Report (AR6) government and expert review, as preparations for the flagship report continue to advance. The review runs from 4 December to 29 January 2021. Interested experts can register until midnight CET on 22 January.

The Working Group II contribution to AR6, Climate Change 2022: Impacts, Adaptation and Vulnerability, will cover the impacts of climate change on human and natural systems, their vulnerabilities and the capacities they have to adapt to climate change. It will also cover options for creating a sustainable future for all through an equitable and integrated approach to adaptation efforts at all scales, linking to the assessment of climate mitigation options by Working Group III.

“Our authors worked day and night under difficult circumstances to finalize the Second-Order Draft on time. Now, we ask all experts, stakeholders and decision makers to participate in this review process,” said Debra Roberts, Co-Chair of Working Group II.

Working Group III – Mitigation of Climate Change

The Intergovernmental Panel on Climate Change (IPCC), currently working on its next comprehensive report, the Sixth Assessment Report (AR6), will open the draft Working Group III contribution for a second review by experts from 18 January to 14 March 2021. Interested experts can register until midnight CET on 7 March 2021.

Working Group III is responsible for assessing the mitigation of climate change – responses and solutions to the threat of dangerous climate change by reducing emissions and enhancing sinks of the greenhouse gases that are responsible for global warming.

“Our authors worked tirelessly and under unique circumstances to prepare this draft for review. It is the first opportunity for governments to review the WG III contribution to the Sixth Assessment and we strongly encourage and welcome their comments on this draft,” said Jim Skea and Priyadarshi Shukla, the Co-Chairs of Working Group III.

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 dates for the final government review of the Working Group III contribution to the AR6 are yet to be confirmed.