The Intergovernmental Panel on Climate Change (IPCC) has issued a call for expert reviewers for the IPCC Special Report on Climate Change and Cities. The IPCC Focal Point for Italy invites experts previously nominated as authors and not selected to join this key process, as well as all with relevant expertise who are interested in supporting the IPCC assessment process. A webinar to explain the Expert Review process will take place on 24 October 2025 at 13:00 CEST.

Photo Denys Nevozhai on Unsplash.

*Note for Italian speakers: Poiché tutti i lavori riguardanti i Report dell’IPCC si svolgono in lingua inglese, tutte le comunicazioni ufficiali dell’IPCC Focal Point per l’Italia relative all’Expert Review saranno in lingua inglese.

The authors of the IPCC Special Report on Climate Change and Cities have been preparing the First Order Draft (FOD) of the report, which will be available for expert review from 17 October to 12 December 2025 (midnight GMT +1).

The Expert Review of the FOD is a key element of the IPCC assessment process, designed to ensure that the report provides a balanced and comprehensive assessment of the latest scientific findings. In line with IPCC Procedures, the review process is objective, open, and transparent, promoting broad participation from independent experts across disciplines, regions, and perspectives to capture a wide range of views and expertise.

All those previously nominated for any role in the Special Report by National Focal Points, governments and observer organizations, but not selected, are encouraged to participate. All experts with knowledge relevant to the topics addressed in the Special Report are also encouraged to participate.

An online registration system is now open for prospective expert reviewers on the IPCC website. 

Registration will close on 30 November 2025 (midnight GMT +1).

Additional information on the role of Expert Reviewer can be found in Annex 1 of Appendix A to the Principles Governing IPCC Work, along with an information note explaining the Expert Review process. For any questions regarding the process, please contact the IPCC Working Group II Technical Support Unit (TSU) at media@ipccwg2.org.

“Open Hour” webinar

The IPCC Focal Point for Italy will host an “Open Hour” webinar on Friday, October 24, at 13:00 CEST, to discuss the Expert Review process. 

The webinar will be moderated by Anna Pirani, CMCC and Focal Point alternate for Italy, who was recently nominated Lead Author for Chapter 1 of the Working Group (WG) on Impacts, adaptation, and vulnerability of the IPCC Seventh Assessment Report. Dr. Pirani also served as executive editor of the IPCC Special Report on Global Warming of 1.5°C and the IPCC Sixth Assessment Report (AR6) in Working Group I, and was an author of the IPCC AR6 Synthesis Report.

The webinar includes the participation of authors of the Special Report on Climate Change and Cities: Rita Nogherotto, Italian National Research Council – Institute of Atmospheric Sciences and Climate (CNR-ISAC), and Giulia Ulpiani, European Commission Joint Research Centre (JRC).

Join the IPCC Focal Point for Italy “Open Hour” webinar to learn more about how to participate in the expert review process.

Register here.