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

Houston Kuala Lumpur Mumbai Tel Aviv – Yafo Delhi NCT Chennai Hong Kong Toronto Athens Wuhan London Heidelberg Montréal Chengdu Seattle Yokohama Oslo New York City Istanbul Jakarta New Orleans Abidjan Tokyo Salvador Rome Milan Hanoi Amman Durban (eThekwini) Ho Chi Minh City Barcelona Auckland Casablanca Houston Kuala Lumpur Mumbai Tel Aviv – Yafo Delhi NCT Chennai Hong Kong Toronto Athens Wuhan London Heidelberg Montréal Chengdu Seattle Yokohama Oslo New York City Istanbul Jakarta New Orleans Abidjan Tokyo Salvador Rome Milan Hanoi Amman Durban (eThekwini) Ho Chi Minh City Barcelona Auckland Casablanca

Guadalajara Buenos Aires Miami Shenzhen Bangkok Berlin Shanghai Mexico City Johannesburg Rotterdam Washington, DC Bogotá Zhenjiang São Paulo Santiago Beijing Boston Madrid Amsterdam Quito Dalian Philadelphia Medellín Chicago Accra Melbourne Lagos Portland Tshwane Guangzhou San Francisco Nairobi Karachi Guadalajara Buenos Aires Miami Shenzhen Bangkok Berlin Shanghai Mexico City Johannesburg Rotterdam Washington, DC Bogotá Zhenjiang São Paulo Santiago Beijing Boston Madrid Amsterdam Quito Dalian Philadelphia Medellín Chicago Accra Melbourne Lagos Portland Tshwane Guangzhou San Francisco Nairobi Karachi

Rio de Janeiro Lima Dubai Fortaleza Paris Ahmedabad Quezon City Dar es Salaam Los Angeles Stockholm Phoenix Copenhagen Seoul Sydney Vancouver Bengaluru Qingdao Fuzhou Warsaw Singapore Freetown Hangzhou Dhaka (North & South) Nanjing Ekurhuleni Curitiba Addis Ababa Austin Dakar Lisbon Cape Town Rio de Janeiro Lima Dubai Fortaleza Paris Ahmedabad Quezon City Dar es Salaam Los Angeles Stockholm Phoenix Copenhagen Seoul Sydney Vancouver Bengaluru Qingdao Fuzhou Warsaw Singapore Freetown Hangzhou Dhaka (North & South) Nanjing Ekurhuleni Curitiba Addis Ababa Austin Dakar Lisbon Cape Town