Let’s power on.

Ahead of the Local Leaders Forum and World Mayors Summit in November, C40 mayors from around the world are working together at New York Climate Week to showcase bold, city-led solutions that tackle the climate crisis. 

At a time when global challenges are growing, cities are stepping up. From cutting fossil fuels and scaling up clean energy to creating good green jobs and protecting communities, local leaders are proving what’s possible when action meets ambition.

EVENTS

Cities leading change: Unlocking local climate capital

C40 Cities, Raftelis

Lever House | 23 September 2025

Climate Mayors leadership forum

Climate Mayors, C40 Cities, New York Climate Exchange, Urban Climate Change Research Network

Roosevelt House Public Policy Institute at Hunter College in New York City | 24 September 2025

Powering the global energy transition: Port cities as clean energy hubs

C40 Cities, Arup

101 Park Avenue | 25 September 2025

United Nations’ digital cooperation day event

United Nations Office for Digital and Emerging Technologies (UN ODET), UN Habitat, C40 Co-Chair

Ease 605 | 22 September 2025

The Climate Group hub live – from volatile to viable – the new playbook for energy security

The Climate Group, C40 Co-Chair

The Glasshouse | 22 September 2025

UN high-level solutions dialogue on accelerating credible transition planning for net zero by non-state actors

UN Global Compact, UNEP-UN Environment Programme, UN Secretary-General Climate Action Team, C40 Co-Chair

UN Global Compact Office | 23 September 2025

Africa-Europe Foundation – risk, resilience, results: The power of investing in locally-led climate and health solutions

The Africa-Europe Foundation, Foreign Policy, Foundation S, C40 Co-Chair

Studio Gather at Rockefeller Center | 24 September 2025

Solutions house 2025 event – Climate solutions that are not boring

Futerra, Exponential Roadmap Initiative, The Wellcome Trust, C40 Co-Chair

Lavan Midtown | 24 September 2025

Contact us

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