C40 is a global network of mayors of the world’s leading cities that are united in action to confront the climate crisis.

Seattle Auckland San Francisco Durban (eThekwini) Berlin Dubai Sydney Lisbon Chengdu Dalian Wuhan New Orleans Yokohama Shanghai Montréal New York City Buenos Aires Dar es Salaam Casablanca Toronto Lagos Rotterdam Hanoi Madrid Seoul Abidjan Amsterdam Tel Aviv – Yafo Dakar Philadelphia Quezon City Houston Ekurhuleni Seattle Auckland San Francisco Durban (eThekwini) Berlin Dubai Sydney Lisbon Chengdu Dalian Wuhan New Orleans Yokohama Shanghai Montréal New York City Buenos Aires Dar es Salaam Casablanca Toronto Lagos Rotterdam Hanoi Madrid Seoul Abidjan Amsterdam Tel Aviv – Yafo Dakar Philadelphia Quezon City Houston Ekurhuleni

Chicago Washington, DC Salvador Fuzhou Fortaleza Warsaw Bengaluru Mexico City Tshwane Chennai Los Angeles Bangkok Guangzhou Stockholm Guadalajara Miami Melbourne Ho Chi Minh City Shenzhen Istanbul Tokyo Santiago Phoenix Nairobi Beijing Rio de Janeiro Mumbai Hangzhou Vancouver Ahmedabad Paris Medellín Freetown Chicago Washington, DC Salvador Fuzhou Fortaleza Warsaw Bengaluru Mexico City Tshwane Chennai Los Angeles Bangkok Guangzhou Stockholm Guadalajara Miami Melbourne Ho Chi Minh City Shenzhen Istanbul Tokyo Santiago Phoenix Nairobi Beijing Rio de Janeiro Mumbai Hangzhou Vancouver Ahmedabad Paris Medellín Freetown

Austin Amman Jakarta Zhenjiang Curitiba Hong Kong Copenhagen Dhaka (North & South) Kuala Lumpur Nanjing Lima Quito Bogotá Qingdao Athens Delhi NCT Karachi Singapore Johannesburg Milan Oslo Boston Rome Cape Town Barcelona Accra London Addis Ababa Portland Heidelberg São Paulo Austin Amman Jakarta Zhenjiang Curitiba Hong Kong Copenhagen Dhaka (North & South) Kuala Lumpur Nanjing Lima Quito Bogotá Qingdao Athens Delhi NCT Karachi Singapore Johannesburg Milan Oslo Boston Rome Cape Town Barcelona Accra London Addis Ababa Portland Heidelberg São Paulo