IPCC Opens Expert Review of AR7 Drafts for Impacts, Adaptation and Mitigation

Overview

• The IPCC has released the First Order Draft of the Working Group II contribution to the Seventh Assessment Report and a separate draft revising the 1994 Technical Guidelines on Impacts and Adaptation for expert review.
• The Working Group III First Order Draft on mitigation is also open for expert review, with that review scheduled to run from 16 November 2026 to 2 February 2027 and registration for reviewers closing on 26 January 2027.
• Registration for the WGII expert review closes on 20 November 2026 at 10:59pm GMT, marking the immediate window for experts to sign up and submit comments on accuracy, balance, clarity and cited literature.
• Authors for AR7 were selected through the IPCC’s nomination process in 2025 and have completed these First Order Drafts, which will be revised after expert input and then go through subsequent government and expert review stages.
• Updating the 1994 Technical Guidelines aims to standardize modern indicators, metrics and methods for assessing impacts and adaptation, and expert feedback now could change what indicators are recommended and how adaptation progress is tracked in future policy discussions.