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

Tokyo London Heidelberg Zhenjiang Guangzhou Singapore Quito Casablanca Vancouver New Orleans Paris Sydney Boston Athens Copenhagen Seoul San Francisco Jakarta Montréal Istanbul Madrid Ekurhuleni Yokohama Durban (eThekwini) Portland Qingdao Wuhan Lagos Abidjan Shanghai Lisbon Warsaw Tel Aviv – Yafo Tokyo London Heidelberg Zhenjiang Guangzhou Singapore Quito Casablanca Vancouver New Orleans Paris Sydney Boston Athens Copenhagen Seoul San Francisco Jakarta Montréal Istanbul Madrid Ekurhuleni Yokohama Durban (eThekwini) Portland Qingdao Wuhan Lagos Abidjan Shanghai Lisbon Warsaw Tel Aviv – Yafo

Shenzhen Dakar Oslo Addis Ababa Chengdu Seattle Chicago Bogotá Amman Freetown Houston Melbourne Beijing Philadelphia Nanjing Cape Town Milan Austin Lima Accra Barcelona Nairobi Toronto Rio de Janeiro Fuzhou Guadalajara New York City Dhaka (North & South) Los Angeles São Paulo Delhi NCT Medellín Miami Shenzhen Dakar Oslo Addis Ababa Chengdu Seattle Chicago Bogotá Amman Freetown Houston Melbourne Beijing Philadelphia Nanjing Cape Town Milan Austin Lima Accra Barcelona Nairobi Toronto Rio de Janeiro Fuzhou Guadalajara New York City Dhaka (North & South) Los Angeles São Paulo Delhi NCT Medellín Miami

Chennai Buenos Aires Dalian Rotterdam Auckland Fortaleza Berlin Rome Karachi Bangkok Quezon City Dubai Curitiba Salvador Bengaluru Santiago Washington, DC Kuala Lumpur Amsterdam Ahmedabad Hangzhou Ho Chi Minh City Johannesburg Stockholm Mumbai Phoenix Dar es Salaam Hanoi Hong Kong Tshwane Mexico City Chennai Buenos Aires Dalian Rotterdam Auckland Fortaleza Berlin Rome Karachi Bangkok Quezon City Dubai Curitiba Salvador Bengaluru Santiago Washington, DC Kuala Lumpur Amsterdam Ahmedabad Hangzhou Ho Chi Minh City Johannesburg Stockholm Mumbai Phoenix Dar es Salaam Hanoi Hong Kong Tshwane Mexico City