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

Amsterdam Dakar Portland Guangzhou Melbourne Dar es Salaam Ahmedabad Shanghai Ho Chi Minh City Milan Lagos Madrid Salvador Nairobi Tokyo Qingdao Dalian Quezon City Rome Shenzhen Philadelphia Istanbul Washington, DC Ekurhuleni Boston Los Angeles Chennai Miami Hong Kong Medellín Barcelona Mumbai Dubai Amsterdam Dakar Portland Guangzhou Melbourne Dar es Salaam Ahmedabad Shanghai Ho Chi Minh City Milan Lagos Madrid Salvador Nairobi Tokyo Qingdao Dalian Quezon City Rome Shenzhen Philadelphia Istanbul Washington, DC Ekurhuleni Boston Los Angeles Chennai Miami Hong Kong Medellín Barcelona Mumbai Dubai

San Francisco Johannesburg Bogotá Warsaw Dhaka (North & South) Jakarta Mexico City Bengaluru Tel Aviv – Yafo Montréal Zhenjiang Buenos Aires Paris Casablanca Chicago London Rotterdam Oslo Seoul Rio de Janeiro Durban (eThekwini) Beijing Cape Town Vancouver Kuala Lumpur Freetown Austin Lima Chengdu Heidelberg Hangzhou Abidjan Yokohama San Francisco Johannesburg Bogotá Warsaw Dhaka (North & South) Jakarta Mexico City Bengaluru Tel Aviv – Yafo Montréal Zhenjiang Buenos Aires Paris Casablanca Chicago London Rotterdam Oslo Seoul Rio de Janeiro Durban (eThekwini) Beijing Cape Town Vancouver Kuala Lumpur Freetown Austin Lima Chengdu Heidelberg Hangzhou Abidjan Yokohama

Fuzhou Copenhagen Fortaleza Amman Singapore New York City Houston Santiago Karachi Berlin New Orleans São Paulo Wuhan Toronto Sydney Addis Ababa Accra Phoenix Auckland Bangkok Athens Hanoi Seattle Curitiba Quito Lisbon Tshwane Nanjing Guadalajara Delhi NCT Stockholm Fuzhou Copenhagen Fortaleza Amman Singapore New York City Houston Santiago Karachi Berlin New Orleans São Paulo Wuhan Toronto Sydney Addis Ababa Accra Phoenix Auckland Bangkok Athens Hanoi Seattle Curitiba Quito Lisbon Tshwane Nanjing Guadalajara Delhi NCT Stockholm