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

Medellín Ho Chi Minh City Auckland Los Angeles Athens Nairobi Dakar Montréal Nanjing Tokyo Addis Ababa Fortaleza Warsaw Tshwane Dubai Toronto Dar es Salaam New York City Chennai Mexico City London Singapore Miami Oslo Delhi NCT Washington, DC Philadelphia Lisbon Rome New Orleans Hong Kong Bogotá Medellín Ho Chi Minh City Auckland Los Angeles Athens Nairobi Dakar Montréal Nanjing Tokyo Addis Ababa Fortaleza Warsaw Tshwane Dubai Toronto Dar es Salaam New York City Chennai Mexico City London Singapore Miami Oslo Delhi NCT Washington, DC Philadelphia Lisbon Rome New Orleans Hong Kong Bogotá

Bengaluru Phoenix Quito Stockholm Rotterdam Shanghai Sydney Ekurhuleni Karachi Copenhagen Seoul Bangkok Chicago San Francisco Seattle Salvador São Paulo Chengdu Jakarta Yokohama Barcelona Rio de Janeiro Lagos Ahmedabad Portland Melbourne Tel Aviv – Yafo Qingdao Lima Buenos Aires Accra Dhaka (North & South) Bengaluru Phoenix Quito Stockholm Rotterdam Shanghai Sydney Ekurhuleni Karachi Copenhagen Seoul Bangkok Chicago San Francisco Seattle Salvador São Paulo Chengdu Jakarta Yokohama Barcelona Rio de Janeiro Lagos Ahmedabad Portland Melbourne Tel Aviv – Yafo Qingdao Lima Buenos Aires Accra Dhaka (North & South)

Abidjan Austin Hangzhou Freetown Amman Istanbul Berlin Heidelberg Zhenjiang Wuhan Amsterdam Johannesburg Mumbai Curitiba Dalian Durban (eThekwini) Guadalajara Santiago Hanoi Paris Quezon City Boston Madrid Kuala Lumpur Vancouver Fuzhou Cape Town Houston Milan Guangzhou Shenzhen Beijing Abidjan Austin Hangzhou Freetown Amman Istanbul Berlin Heidelberg Zhenjiang Wuhan Amsterdam Johannesburg Mumbai Curitiba Dalian Durban (eThekwini) Guadalajara Santiago Hanoi Paris Quezon City Boston Madrid Kuala Lumpur Vancouver Fuzhou Cape Town Houston Milan Guangzhou Shenzhen Beijing