The Intergovernmental Panel on Climate Change (IPCC) will resume its Sixty-Fifth Session (IPCC-65) from December 1 to 3, 2026. The meeting will be held virtually.
At the resumed session, the IPCC member governments will primarily consider two remaining agenda items: the Work Plan for the IPCC Seventh Assessment Report (AR7) and the IPCC Trust Fund Programme and Budget.
Mazhar Hayat (right) and Takeshi Enoki, IPCC’s Task Force on National Greenhouse Gas Inventories Co-Chairs
Similarly, the IPCC has opened registration for experts to review the First Order Draft of the 2027 IPCC Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture, Utilisation and Storage for National Greenhouse Gas Inventories (Additional guidance). The Expert Review will run from November 2 to December 20, 2026.
Expert review is the first stage in the IPCC’s multi-stage review process, one of the most comprehensive and transparent procedures in international science assessment. During this stage, experts assess the draft and provide comments on its scientific and technical accuracy, completeness, clarity and applicability to national greenhouse gas inventories.
“Expert review is essential to ensuring that IPCC methodology guidance is scientifically sound and practical for countries preparing national greenhouse gas inventories,” said Mazhar Hayat, one of the Co-Chairs of the IPCC Task Force on National Greenhouse Gas Inventories (TFI).
“We encourage experts from all relevant disciplines and regions to examine the draft, identify gaps and suggest improvements,” Hayat added.
The Panel approved the preparation of this methodology report during its 63rd Session in Lima, Peru, in October 2025 and agreed its outline. The report will provide additional methodological guidance for estimating and reporting greenhouse gas emissions and removals associated with carbon dioxide removal (CDR) technologies and carbon capture, utilisation and storage (CCUS) activities in national greenhouse gas inventories.
“Reliable national greenhouse gas inventories are essential for tracking progress towards climate goals. As carbon dioxide removal and carbon capture technologies develop, it is important that inventory methodologies keep pace with these developments. This report will help countries address that challenge,” said Takeshi Enoki, the other TFI Co-Chair.
