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

Curitiba Ho Chi Minh City Shanghai Accra Barcelona Berlin Milan Stockholm Johannesburg Seattle Durban (eThekwini) Heidelberg Mumbai Lima Austin São Paulo Tshwane Rio de Janeiro Hanoi Bogotá Buenos Aires Abidjan Jakarta Athens Casablanca Addis Ababa Montréal Salvador Bangkok Dhaka (North & South) Nanjing Washington, DC Oslo Curitiba Ho Chi Minh City Shanghai Accra Barcelona Berlin Milan Stockholm Johannesburg Seattle Durban (eThekwini) Heidelberg Mumbai Lima Austin São Paulo Tshwane Rio de Janeiro Hanoi Bogotá Buenos Aires Abidjan Jakarta Athens Casablanca Addis Ababa Montréal Salvador Bangkok Dhaka (North & South) Nanjing Washington, DC Oslo

Amsterdam Toronto Quezon City Wuhan Chengdu Santiago Los Angeles Chicago Medellín Shenzhen Lisbon Beijing Sydney Houston Dalian Tokyo Copenhagen Portland Nairobi Melbourne Dubai Fortaleza Freetown Qingdao Ahmedabad Phoenix Quito Kuala Lumpur Auckland Paris Warsaw Vancouver Fuzhou Amsterdam Toronto Quezon City Wuhan Chengdu Santiago Los Angeles Chicago Medellín Shenzhen Lisbon Beijing Sydney Houston Dalian Tokyo Copenhagen Portland Nairobi Melbourne Dubai Fortaleza Freetown Qingdao Ahmedabad Phoenix Quito Kuala Lumpur Auckland Paris Warsaw Vancouver Fuzhou

Singapore Chennai Zhenjiang London Boston Hong Kong Bengaluru Dakar Mexico City Dar es Salaam Cape Town New Orleans New York City Philadelphia Lagos Rotterdam Guangzhou Hangzhou Delhi NCT Amman Rome Istanbul San Francisco Miami Karachi Guadalajara Tel Aviv – Yafo Yokohama Madrid Ekurhuleni Seoul Singapore Chennai Zhenjiang London Boston Hong Kong Bengaluru Dakar Mexico City Dar es Salaam Cape Town New Orleans New York City Philadelphia Lagos Rotterdam Guangzhou Hangzhou Delhi NCT Amman Rome Istanbul San Francisco Miami Karachi Guadalajara Tel Aviv – Yafo Yokohama Madrid Ekurhuleni Seoul