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

Chennai Hanoi Ahmedabad Portland Madrid Quito Mumbai Stockholm San Francisco Houston Rotterdam Abidjan Istanbul Barcelona Yokohama Addis Ababa Seattle Shenzhen Nanjing Kuala Lumpur Rome Chengdu Zhenjiang Wuhan Mexico City Delhi NCT Melbourne Milan Hangzhou Buenos Aires Toronto Karachi Chennai Hanoi Ahmedabad Portland Madrid Quito Mumbai Stockholm San Francisco Houston Rotterdam Abidjan Istanbul Barcelona Yokohama Addis Ababa Seattle Shenzhen Nanjing Kuala Lumpur Rome Chengdu Zhenjiang Wuhan Mexico City Delhi NCT Melbourne Milan Hangzhou Buenos Aires Toronto Karachi

Dakar Los Angeles Tel Aviv – Yafo Cape Town Quezon City Copenhagen London Medellín Seoul Bogotá Ekurhuleni Phoenix Vancouver Philadelphia Athens Qingdao Amman Ho Chi Minh City Sydney Boston Dubai Curitiba Guangzhou Durban (eThekwini) Accra Miami Oslo Heidelberg Amsterdam Salvador Bengaluru Guadalajara Dakar Los Angeles Tel Aviv – Yafo Cape Town Quezon City Copenhagen London Medellín Seoul Bogotá Ekurhuleni Phoenix Vancouver Philadelphia Athens Qingdao Amman Ho Chi Minh City Sydney Boston Dubai Curitiba Guangzhou Durban (eThekwini) Accra Miami Oslo Heidelberg Amsterdam Salvador Bengaluru Guadalajara

Tshwane Johannesburg Lisbon Tokyo Austin Berlin Montréal Paris Beijing Dar es Salaam Freetown Lagos São Paulo Dhaka (North & South) Dalian Singapore New York City Bangkok Rio de Janeiro Shanghai Lima Auckland Fuzhou Chicago Kolkata Hong Kong Jakarta Washington, DC Warsaw Santiago Nairobi New Orleans Tshwane Johannesburg Lisbon Tokyo Austin Berlin Montréal Paris Beijing Dar es Salaam Freetown Lagos São Paulo Dhaka (North & South) Dalian Singapore New York City Bangkok Rio de Janeiro Shanghai Lima Auckland Fuzhou Chicago Kolkata Hong Kong Jakarta Washington, DC Warsaw Santiago Nairobi New Orleans