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

Istanbul Seoul Seattle Santiago Melbourne Austin Cape Town Barcelona Zhenjiang Abidjan Mexico City Rome Philadelphia Shanghai Rotterdam Stockholm Fuzhou Freetown Ahmedabad Quito New York City Hangzhou Nanjing Dakar Lisbon Copenhagen Medellín Fortaleza Heidelberg New Orleans Bangkok Paris Dar es Salaam Istanbul Seoul Seattle Santiago Melbourne Austin Cape Town Barcelona Zhenjiang Abidjan Mexico City Rome Philadelphia Shanghai Rotterdam Stockholm Fuzhou Freetown Ahmedabad Quito New York City Hangzhou Nanjing Dakar Lisbon Copenhagen Medellín Fortaleza Heidelberg New Orleans Bangkok Paris Dar es Salaam

Delhi NCT Salvador São Paulo Tel Aviv – Yafo Rio de Janeiro Montréal Portland Vancouver Amman Buenos Aires Casablanca Shenzhen Tokyo Hanoi Bengaluru Oslo Curitiba Toronto Johannesburg Washington, DC Phoenix Karachi Beijing Bogotá Lagos Miami Dhaka (North & South) Guangzhou Dubai San Francisco London Addis Ababa Mumbai Delhi NCT Salvador São Paulo Tel Aviv – Yafo Rio de Janeiro Montréal Portland Vancouver Amman Buenos Aires Casablanca Shenzhen Tokyo Hanoi Bengaluru Oslo Curitiba Toronto Johannesburg Washington, DC Phoenix Karachi Beijing Bogotá Lagos Miami Dhaka (North & South) Guangzhou Dubai San Francisco London Addis Ababa Mumbai

Chicago Houston Nairobi Boston Auckland Warsaw Ho Chi Minh City Amsterdam Quezon City Athens Singapore Durban (eThekwini) Lima Kuala Lumpur Berlin Guadalajara Hong Kong Ekurhuleni Yokohama Chengdu Jakarta Milan Dalian Accra Chennai Madrid Tshwane Sydney Qingdao Wuhan Los Angeles Chicago Houston Nairobi Boston Auckland Warsaw Ho Chi Minh City Amsterdam Quezon City Athens Singapore Durban (eThekwini) Lima Kuala Lumpur Berlin Guadalajara Hong Kong Ekurhuleni Yokohama Chengdu Jakarta Milan Dalian Accra Chennai Madrid Tshwane Sydney Qingdao Wuhan Los Angeles