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

Auckland São Paulo Guadalajara Tshwane Melbourne Delhi NCT Hong Kong Dubai Phoenix Guangzhou Fortaleza Rio de Janeiro Yokohama Philadelphia Seoul Hanoi Houston Barcelona Nairobi New York City Singapore Seattle Hangzhou Curitiba Johannesburg Addis Ababa Toronto Dakar Quezon City Kuala Lumpur Rome Ahmedabad Dalian Auckland São Paulo Guadalajara Tshwane Melbourne Delhi NCT Hong Kong Dubai Phoenix Guangzhou Fortaleza Rio de Janeiro Yokohama Philadelphia Seoul Hanoi Houston Barcelona Nairobi New York City Singapore Seattle Hangzhou Curitiba Johannesburg Addis Ababa Toronto Dakar Quezon City Kuala Lumpur Rome Ahmedabad Dalian

Ho Chi Minh City Tel Aviv – Yafo Karachi Zhenjiang Nanjing Medellín Heidelberg Istanbul Buenos Aires Jakarta Abidjan Lagos Warsaw Oslo Montréal Durban (eThekwini) Dhaka (North & South) Mexico City Amsterdam Lima Athens Ekurhuleni London Accra Sydney San Francisco Fuzhou Milan Chicago Mumbai Miami Wuhan Bengaluru Ho Chi Minh City Tel Aviv – Yafo Karachi Zhenjiang Nanjing Medellín Heidelberg Istanbul Buenos Aires Jakarta Abidjan Lagos Warsaw Oslo Montréal Durban (eThekwini) Dhaka (North & South) Mexico City Amsterdam Lima Athens Ekurhuleni London Accra Sydney San Francisco Fuzhou Milan Chicago Mumbai Miami Wuhan Bengaluru

Portland Chengdu Santiago Berlin Cape Town Bangkok Quito Los Angeles New Orleans Tokyo Shenzhen Washington, DC Shanghai Freetown Copenhagen Salvador Chennai Austin Rotterdam Amman Qingdao Casablanca Vancouver Beijing Madrid Paris Boston Stockholm Dar es Salaam Bogotá Lisbon Portland Chengdu Santiago Berlin Cape Town Bangkok Quito Los Angeles New Orleans Tokyo Shenzhen Washington, DC Shanghai Freetown Copenhagen Salvador Chennai Austin Rotterdam Amman Qingdao Casablanca Vancouver Beijing Madrid Paris Boston Stockholm Dar es Salaam Bogotá Lisbon