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

Freetown Montréal Salvador Quezon City Johannesburg Quito Houston Dalian Athens Ho Chi Minh City San Francisco Durban (eThekwini) Kuala Lumpur Tel Aviv – Yafo Bogotá Buenos Aires Medellín Seattle Addis Ababa Beijing Sydney Ahmedabad Nairobi Oslo Stockholm Milan Seoul Guangzhou Rome Cape Town Rotterdam Amsterdam Dhaka (North & South) Freetown Montréal Salvador Quezon City Johannesburg Quito Houston Dalian Athens Ho Chi Minh City San Francisco Durban (eThekwini) Kuala Lumpur Tel Aviv – Yafo Bogotá Buenos Aires Medellín Seattle Addis Ababa Beijing Sydney Ahmedabad Nairobi Oslo Stockholm Milan Seoul Guangzhou Rome Cape Town Rotterdam Amsterdam Dhaka (North & South)

Bangkok Warsaw Barcelona Madrid Nanjing Hanoi Heidelberg London Fortaleza Portland Karachi Chicago Mumbai Casablanca São Paulo Toronto Jakarta Tokyo Rio de Janeiro Curitiba New York City Dakar Dar es Salaam Melbourne Austin Fuzhou Amman Tshwane Vancouver Paris Lima Philadelphia Mexico City Bangkok Warsaw Barcelona Madrid Nanjing Hanoi Heidelberg London Fortaleza Portland Karachi Chicago Mumbai Casablanca São Paulo Toronto Jakarta Tokyo Rio de Janeiro Curitiba New York City Dakar Dar es Salaam Melbourne Austin Fuzhou Amman Tshwane Vancouver Paris Lima Philadelphia Mexico City

Miami Chengdu Chennai Hangzhou Phoenix Singapore Copenhagen Istanbul Santiago Bengaluru Los Angeles Hong Kong Boston Shanghai Delhi NCT Qingdao Yokohama New Orleans Berlin Abidjan Lisbon Zhenjiang Accra Auckland Lagos Washington, DC Ekurhuleni Dubai Shenzhen Guadalajara Wuhan Miami Chengdu Chennai Hangzhou Phoenix Singapore Copenhagen Istanbul Santiago Bengaluru Los Angeles Hong Kong Boston Shanghai Delhi NCT Qingdao Yokohama New Orleans Berlin Abidjan Lisbon Zhenjiang Accra Auckland Lagos Washington, DC Ekurhuleni Dubai Shenzhen Guadalajara Wuhan