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

Oslo Buenos Aires Chengdu Berlin Houston Vancouver Toronto Abidjan Fuzhou Bengaluru Quito Austin Quezon City Athens Kuala Lumpur Amsterdam Madrid Dar es Salaam Lisbon Warsaw Seoul Dalian New Orleans Washington, DC Chicago Istanbul London Dakar Bogotá Lima Rome São Paulo Heidelberg Oslo Buenos Aires Chengdu Berlin Houston Vancouver Toronto Abidjan Fuzhou Bengaluru Quito Austin Quezon City Athens Kuala Lumpur Amsterdam Madrid Dar es Salaam Lisbon Warsaw Seoul Dalian New Orleans Washington, DC Chicago Istanbul London Dakar Bogotá Lima Rome São Paulo Heidelberg

Rio de Janeiro Dubai Phoenix Dhaka (North & South) Hangzhou Tel Aviv – Yafo Karachi Stockholm Seattle Johannesburg Hanoi Nairobi Shenzhen Copenhagen Bangkok Freetown Yokohama Shanghai Jakarta Beijing Tokyo Qingdao Ekurhuleni Delhi NCT Santiago Fortaleza Guadalajara Cape Town Singapore Sydney Philadelphia Addis Ababa San Francisco Rio de Janeiro Dubai Phoenix Dhaka (North & South) Hangzhou Tel Aviv – Yafo Karachi Stockholm Seattle Johannesburg Hanoi Nairobi Shenzhen Copenhagen Bangkok Freetown Yokohama Shanghai Jakarta Beijing Tokyo Qingdao Ekurhuleni Delhi NCT Santiago Fortaleza Guadalajara Cape Town Singapore Sydney Philadelphia Addis Ababa San Francisco

Melbourne Mumbai Auckland Mexico City Curitiba Los Angeles Hong Kong Lagos Ahmedabad Miami New York City Rotterdam Paris Boston Guangzhou Amman Nanjing Salvador Casablanca Medellín Zhenjiang Milan Barcelona Ho Chi Minh City Wuhan Durban (eThekwini) Chennai Accra Montréal Tshwane Portland Melbourne Mumbai Auckland Mexico City Curitiba Los Angeles Hong Kong Lagos Ahmedabad Miami New York City Rotterdam Paris Boston Guangzhou Amman Nanjing Salvador Casablanca Medellín Zhenjiang Milan Barcelona Ho Chi Minh City Wuhan Durban (eThekwini) Chennai Accra Montréal Tshwane Portland