Over 600 experts appointed to the three Working Groups of the Intergovernmental Panel on Climate Change (IPCC) will gather in Paris from December 1 to 5, 2025, to begin the drafting of the IPCC’s Seventh Assessment Report (AR7).
Hosted by the French Government, through the Ministry of Ecological Transition, Biodiversity, Forestry, Sea and Fisheries, the Ministry of Education and Research and the Ministry for Europe and Foreign Affairs, this is the First Lead Author Meeting, held jointly by the three Working Groups.
Authors from more than 100 countries will focus their work on the initial drafts of the three Working Group contributions to AR7 and cross-cutting topics. Bringing together authors from all three Working Groups in a single venue aims to enable the IPCC to take an ambitious qualitative leap in assessing key interdisciplinary questions related to climate change.
On Friday, November 28, a virtual media briefing will be held ahead of the official opening of the first Lead Author Meeting, which is taking place on Monday, December 1, 2025. Speakers include Gabriel Normand, diplomatic advisor to Monique Barbut, and Robert Vautard, Co-Chair of IPCC Working Group I.
The ceremonial opening of the First Lead Author Meeting will take place on Monday, December 1 and IPCC authors will be addressed by the Minister of Ecological Transition, Monique Barbut; the Mayor of Saint-Denis, Mathieu Hanotin; the Chair of the IPCC, Jim Skea; and the Secretary of the IPCC, Abdalah Mokssit.