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

Johannesburg Vancouver Amsterdam Heidelberg Kuala Lumpur Boston Ekurhuleni Istanbul Quezon City Guadalajara Melbourne Abidjan Freetown Singapore Milan Seattle Warsaw Lagos Dar es Salaam Beijing Los Angeles Nairobi Jakarta Santiago Hangzhou Copenhagen Auckland Seoul Washington, DC Tokyo Dalian Chengdu Bangkok Johannesburg Vancouver Amsterdam Heidelberg Kuala Lumpur Boston Ekurhuleni Istanbul Quezon City Guadalajara Melbourne Abidjan Freetown Singapore Milan Seattle Warsaw Lagos Dar es Salaam Beijing Los Angeles Nairobi Jakarta Santiago Hangzhou Copenhagen Auckland Seoul Washington, DC Tokyo Dalian Chengdu Bangkok

Medellín Qingdao Accra Dakar Casablanca Austin Addis Ababa San Francisco Buenos Aires Shenzhen Amman Ho Chi Minh City Karachi Guangzhou Salvador New York City Montréal Stockholm Zhenjiang Yokohama Paris Portland London Durban (eThekwini) Delhi NCT Fuzhou Madrid Sydney Dhaka (North & South) New Orleans São Paulo Bogotá Tshwane Medellín Qingdao Accra Dakar Casablanca Austin Addis Ababa San Francisco Buenos Aires Shenzhen Amman Ho Chi Minh City Karachi Guangzhou Salvador New York City Montréal Stockholm Zhenjiang Yokohama Paris Portland London Durban (eThekwini) Delhi NCT Fuzhou Madrid Sydney Dhaka (North & South) New Orleans São Paulo Bogotá Tshwane

Cape Town Oslo Rotterdam Quito Shanghai Philadelphia Wuhan Nanjing Barcelona Rio de Janeiro Tel Aviv – Yafo Bengaluru Dubai Lisbon Hong Kong Berlin Phoenix Houston Mumbai Lima Hanoi Chicago Mexico City Curitiba Athens Ahmedabad Chennai Toronto Rome Miami Fortaleza Cape Town Oslo Rotterdam Quito Shanghai Philadelphia Wuhan Nanjing Barcelona Rio de Janeiro Tel Aviv – Yafo Bengaluru Dubai Lisbon Hong Kong Berlin Phoenix Houston Mumbai Lima Hanoi Chicago Mexico City Curitiba Athens Ahmedabad Chennai Toronto Rome Miami Fortaleza