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

Berlin Auckland Buenos Aires Shanghai Accra Freetown Stockholm Guangzhou Chengdu Jakarta Guadalajara Lisbon Nairobi Vancouver Boston Bangkok Santiago Los Angeles Toronto Shenzhen Rotterdam Johannesburg San Francisco Ahmedabad New York City Chennai Curitiba Barcelona Wuhan Warsaw Kuala Lumpur Addis Ababa Salvador Berlin Auckland Buenos Aires Shanghai Accra Freetown Stockholm Guangzhou Chengdu Jakarta Guadalajara Lisbon Nairobi Vancouver Boston Bangkok Santiago Los Angeles Toronto Shenzhen Rotterdam Johannesburg San Francisco Ahmedabad New York City Chennai Curitiba Barcelona Wuhan Warsaw Kuala Lumpur Addis Ababa Salvador

Sydney Dubai Delhi NCT Cape Town Quezon City Karachi Bengaluru Casablanca Mumbai London Amsterdam Paris Singapore Washington, DC Athens Qingdao Montréal Philadelphia Beijing Ho Chi Minh City Melbourne Seoul Hong Kong Yokohama Istanbul Amman Phoenix Tokyo Rome Miami Abidjan Durban (eThekwini) Rio de Janeiro Sydney Dubai Delhi NCT Cape Town Quezon City Karachi Bengaluru Casablanca Mumbai London Amsterdam Paris Singapore Washington, DC Athens Qingdao Montréal Philadelphia Beijing Ho Chi Minh City Melbourne Seoul Hong Kong Yokohama Istanbul Amman Phoenix Tokyo Rome Miami Abidjan Durban (eThekwini) Rio de Janeiro

Dakar Houston Seattle Portland Hangzhou Nanjing Heidelberg Madrid Medellín Tel Aviv – Yafo Dalian Oslo São Paulo Hanoi Dar es Salaam Chicago Tshwane Mexico City Ekurhuleni Fortaleza Lagos Dhaka (North & South) Bogotá Lima Milan New Orleans Fuzhou Quito Zhenjiang Copenhagen Austin Dakar Houston Seattle Portland Hangzhou Nanjing Heidelberg Madrid Medellín Tel Aviv – Yafo Dalian Oslo São Paulo Hanoi Dar es Salaam Chicago Tshwane Mexico City Ekurhuleni Fortaleza Lagos Dhaka (North & South) Bogotá Lima Milan New Orleans Fuzhou Quito Zhenjiang Copenhagen Austin