Ministry of the Environment Web Portal for City-to-City Collaboration for Zero Carbon Society

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Mar. 2025C3P projectsA MoU was signed between Kobe City (Japan) and Dong Nai Province (Vietnam).
Mar. 2025C3P projectsMoU for Cooperation in Regional Environmental Conservation was concluded between Urasoe (Japan) and Airai (Palau).
Mar. 2025Related eventsCOP29 Japan Pavilion Side Event: Clean City Partnership Program (C2P2) Seminar was held.
Mar. 2025C3P guidebookThe Guidebook on City-to-City Collaboration for Zero Carbon Society (FY2024 edition) is available.

Call for Proposals

There are currently no open calls for proposals.

What is the City-to-City Collaboration Program?

The program promotes the decarbonization of cities in developing countries through the deployment of a package of solutions owned by Japanese cities and private companies, etc.

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Program introduction video (Released in October 2022)
Contents: Program overview, decarbonization domino effects spreading overseas, other
Click here for YouTube.

https://youtu.be/sb_TZe5ZuCo

Program introduction video (Released in December 2024)
Contents: Voices from participating cities, on-site survey, other
Click here for YouTube.

https://youtu.be/0wgjrc3EncI

Case studies

Examples of city-to-city collaboration projects are presented. (Projects in FY2024)
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Study reports

All study reports for the city-to-city collaboration projects are available.
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Related events

Events related to city-to-city collaboration program are introduced.
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News

Call for Proposals

What is the City-to-City Collaboration Program?

Case studies

Study reports​

Related events​

Study reports

Related events