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IPCC Launches AR7 Drafting With First Joint Lead Author Meeting in Paris

A 2028 vs 2029 release dispute underscores the stakes of the panel’s consensus approval rule.

NGLAND - OCTOBER 23: An environmental protestor joins a demonstration by Fossil Free London outside the global headquarters of the Shell energy company, calling on them to pay financial reparations to survivors of Storm Odette in the Philippines, on October 23, 2025 in London, England. In a legal first, a group of residents from island communities is suing the fossil fuel company Shell in the UK courts, demanding financial compensation for the losses and damage they experienced under Odette. The protest comes one week ahead of the oil giant's release of its quarterly profit results on October 30. (Photo by Leon Neal/Getty Images)
Experts are meeting at the Tour Pleyel skyscraper to begin drafting the next UN climate report

Overview

  • More than 600 experts from over 100 countries are meeting in Saint-Denis from 1–5 December at France’s invitation to start drafting AR7.
  • For the first time, authors from all three Working Groups are convening together to coordinate cross-cutting, interdisciplinary assessments.
  • Several governments in the High Ambition Coalition are pressing for a 2028 publication to inform the next global stocktake, while some emerging economies and fossil-fuel producers favor 2029.
  • IPCC Chair Jim Skea said Working Group reports will begin to appear in 2028, with the Synthesis Report scheduled for late 2029.
  • The consensus-based approval process gives each member state de facto veto power, and reporting notes that climate-sceptic positions from the US administration could complicate agreement.