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

Abidjan Zhenjiang Copenhagen Dubai Singapore Casablanca Buenos Aires Kuala Lumpur Johannesburg Guadalajara Rio de Janeiro Durban (eThekwini) London Istanbul Quito Karachi Philadelphia Accra Vancouver Fortaleza Quezon City Nanjing Shanghai Auckland Houston Paris Madrid Hangzhou Addis Ababa Seattle Dakar Amsterdam Rotterdam Abidjan Zhenjiang Copenhagen Dubai Singapore Casablanca Buenos Aires Kuala Lumpur Johannesburg Guadalajara Rio de Janeiro Durban (eThekwini) London Istanbul Quito Karachi Philadelphia Accra Vancouver Fortaleza Quezon City Nanjing Shanghai Auckland Houston Paris Madrid Hangzhou Addis Ababa Seattle Dakar Amsterdam Rotterdam

Los Angeles Mumbai Tel Aviv – Yafo Montréal Ho Chi Minh City Shenzhen Tokyo Rome Santiago Cape Town Bengaluru Athens Guangzhou Bangkok Oslo Salvador Fuzhou Ekurhuleni Curitiba Warsaw Wuhan Ahmedabad Beijing Nairobi Tshwane Phoenix Hanoi Chicago Yokohama São Paulo Freetown Jakarta Hong Kong Los Angeles Mumbai Tel Aviv – Yafo Montréal Ho Chi Minh City Shenzhen Tokyo Rome Santiago Cape Town Bengaluru Athens Guangzhou Bangkok Oslo Salvador Fuzhou Ekurhuleni Curitiba Warsaw Wuhan Ahmedabad Beijing Nairobi Tshwane Phoenix Hanoi Chicago Yokohama São Paulo Freetown Jakarta Hong Kong

Lagos Chennai Milan Mexico City Portland Lisbon New Orleans Heidelberg Amman Lima Berlin Seoul Barcelona Delhi NCT San Francisco Toronto Boston Melbourne Qingdao Sydney Miami New York City Dhaka (North & South) Dalian Austin Stockholm Bogotá Chengdu Medellín Washington, DC Dar es Salaam Lagos Chennai Milan Mexico City Portland Lisbon New Orleans Heidelberg Amman Lima Berlin Seoul Barcelona Delhi NCT San Francisco Toronto Boston Melbourne Qingdao Sydney Miami New York City Dhaka (North & South) Dalian Austin Stockholm Bogotá Chengdu Medellín Washington, DC Dar es Salaam