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

Medellín Paris Dubai Boston Durban (eThekwini) Berlin Shenzhen Yokohama Freetown Ahmedabad Delhi NCT Tel Aviv – Yafo Quezon City Buenos Aires Seoul Dhaka (North & South) Houston Zhenjiang Heidelberg Copenhagen Philadelphia Hong Kong Madrid Montréal Dakar Vancouver Toronto Abidjan Lima Athens Stockholm Guangzhou Milan Medellín Paris Dubai Boston Durban (eThekwini) Berlin Shenzhen Yokohama Freetown Ahmedabad Delhi NCT Tel Aviv – Yafo Quezon City Buenos Aires Seoul Dhaka (North & South) Houston Zhenjiang Heidelberg Copenhagen Philadelphia Hong Kong Madrid Montréal Dakar Vancouver Toronto Abidjan Lima Athens Stockholm Guangzhou Milan

Rotterdam Ekurhuleni Sydney Oslo Guadalajara Rome Casablanca Santiago Kuala Lumpur Qingdao Dar es Salaam Singapore Tshwane San Francisco Barcelona Melbourne Fuzhou Bengaluru Lagos Amman Salvador Cape Town London Tokyo Fortaleza Washington, DC New York City Auckland Bogotá Mexico City Addis Ababa Hanoi Amsterdam Rotterdam Ekurhuleni Sydney Oslo Guadalajara Rome Casablanca Santiago Kuala Lumpur Qingdao Dar es Salaam Singapore Tshwane San Francisco Barcelona Melbourne Fuzhou Bengaluru Lagos Amman Salvador Cape Town London Tokyo Fortaleza Washington, DC New York City Auckland Bogotá Mexico City Addis Ababa Hanoi Amsterdam

Hangzhou Seattle Austin Ho Chi Minh City Nairobi Portland Bangkok Johannesburg Chennai Mumbai Wuhan Quito Chicago Istanbul Nanjing São Paulo Warsaw Los Angeles Beijing Lisbon Jakarta New Orleans Miami Karachi Dalian Phoenix Curitiba Rio de Janeiro Chengdu Shanghai Accra Hangzhou Seattle Austin Ho Chi Minh City Nairobi Portland Bangkok Johannesburg Chennai Mumbai Wuhan Quito Chicago Istanbul Nanjing São Paulo Warsaw Los Angeles Beijing Lisbon Jakarta New Orleans Miami Karachi Dalian Phoenix Curitiba Rio de Janeiro Chengdu Shanghai Accra