IPCC: Call for Authors and Review Editors for the IPCC Methodology Report on CDR Technologies, CCUS for National Greenhouse Gas Inventories (Additional guidance)

Deadline: For timely nomination, experts should fill out the nomination form until 3 December 2025 (see below).

Outline: The outline of the Methodology Report agreed by the Panel at its Sixty-third Session (Lima, Peru, 27
to 30 October 2025) is available at: Decision IPCC-LXIII-6.

Expertise in demand: The IPCC requires that the nominee(s) have appropriate expertise. All nominations should indicate the chapter(s) and author role(s) for which the candidate is being nominated, a specification of the nominees’ key area of expertise and be accompanied by a curriculum vitae and a list of relevant publications.

Writing and review process: A detailed description of the IPCC writing and review process is contained in the “Procedures for the Preparation, Review, Acceptance, Adoption, Approval and Publication of IPCC Reports” which can be viewed on the IPCC website. The tasks and responsibilities for Coordinating Lead Authors, Lead Authors, Contributing Authors and Review Editors are specified in the Annex 1 to these procedures.

Tasks: The task of Coordinating Lead Authors and Lead Authors is a demanding one. They are responsible, in particular, for drafting the different chapters of the Methodology Report and thereafter revising those taking into account comments submitted during the two IPCC-mandated reviews, namely the expert review and the second review by governments and experts.

Meetings: The Coordinating Lead Authors and Lead Authors will be expected to attend four Lead Author meetings between 2026 and 2027. The presence of Coordinating Lead Authors and selected Lead Authors may be requested at IPCC Plenary Session in the second half of 2027 where the Methodology Report will be adopted. The time commitment of Review Editors is less than that for Coordinating Lead Authors or Lead Authors, but will include attendance at two author meetings in 2026 and 2027. Contributing Authors are normally not required to attend any of these meetings.

Financial Support: ProClim on behalf of the FOEN will be able to reimburse travel (economy class) and accommodation costs to Coordinating Lead Authors, Lead Authors and Review Editors based in Switzerland. Unfortunately, a compensation for working time is not possible.

Selection: Coordinating Lead Authors, Lead Authors and Review Editors will be selected by the Task Force Bureau of the Task Force on National Greenhouse Gas Inventories. The composition of the group of Coordinating Lead Authors and Lead Authors for each chapter shall aim to reflect: the range of technical and socio-economic views and expertise, including experts from academia and practitioners and policymakers; geographical representation, ensuring appropriate representation of experts from developing and developed countries and countries with economies in transition; a mixture of experts with and without previous experience in IPCC; and gender balance.

How to be nominated: If you are interested in serving as an Author or Review Editor for one or more chapters of the Methodology Report, please submit your nomination by following the steps below:

1. Complete the nomination form (Excel) and save it as lastname_firstname.xlsx.
2. Attach a short CV in English (PDF, maximum 4 pages and 2 MB) saved as lastname_firstname_cv.pdf.
3. Email both files to proclim@scnat.ch by 3 December 2025 (if you live and work abroad, please contact your local IPCC Focal Point).

Please Note:

• All mandatory fields marked with * must be completed before submission.
• You may select up to 3 fields of expertise.
• Experts can be nominated for a maximum of 5 chapters.

Nominations will be reviewed and submitted by the Swiss IPCC Focal Point (FOEN).

For further information or questions, please contact proclim@scnat.ch.