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

Buenos Aires Chengdu Ekurhuleni Mexico City Wuhan Philadelphia Amman Shanghai London Lisbon Rio de Janeiro Beijing Kuala Lumpur Quito Guadalajara Santiago Seoul San Francisco Abidjan Sydney Amsterdam Singapore Qingdao Istanbul Milan Tshwane Bengaluru Warsaw Miami Montréal Athens Vancouver Melbourne Buenos Aires Chengdu Ekurhuleni Mexico City Wuhan Philadelphia Amman Shanghai London Lisbon Rio de Janeiro Beijing Kuala Lumpur Quito Guadalajara Santiago Seoul San Francisco Abidjan Sydney Amsterdam Singapore Qingdao Istanbul Milan Tshwane Bengaluru Warsaw Miami Montréal Athens Vancouver Melbourne

Durban (eThekwini) Hanoi Yokohama New Orleans Los Angeles Delhi NCT Johannesburg Madrid Washington, DC Quezon City Dhaka (North & South) Oslo Freetown Paris Jakarta Accra Salvador Stockholm Zhenjiang Hangzhou Karachi Curitiba Dubai Ahmedabad Dakar Heidelberg Lima Boston New York City Fuzhou Casablanca Copenhagen Toronto Durban (eThekwini) Hanoi Yokohama New Orleans Los Angeles Delhi NCT Johannesburg Madrid Washington, DC Quezon City Dhaka (North & South) Oslo Freetown Paris Jakarta Accra Salvador Stockholm Zhenjiang Hangzhou Karachi Curitiba Dubai Ahmedabad Dakar Heidelberg Lima Boston New York City Fuzhou Casablanca Copenhagen Toronto

Nanjing Phoenix Tokyo Barcelona Cape Town Tel Aviv – Yafo Portland Bogotá Rome Shenzhen Seattle Hong Kong Rotterdam Auckland Mumbai Austin Houston Chicago Bangkok Addis Ababa Medellín Ho Chi Minh City Lagos Nairobi Fortaleza Dar es Salaam Guangzhou Chennai Dalian São Paulo Berlin Nanjing Phoenix Tokyo Barcelona Cape Town Tel Aviv – Yafo Portland Bogotá Rome Shenzhen Seattle Hong Kong Rotterdam Auckland Mumbai Austin Houston Chicago Bangkok Addis Ababa Medellín Ho Chi Minh City Lagos Nairobi Fortaleza Dar es Salaam Guangzhou Chennai Dalian São Paulo Berlin