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

Beijing Tel Aviv – Yafo Milan New York City Medellín Bogotá Houston Hangzhou Delhi NCT Oslo Shenzhen Lima Mexico City Lisbon Heidelberg Nanjing Hong Kong Madrid Yokohama Istanbul Fuzhou Amsterdam Shanghai Karachi Dubai Nairobi Phoenix Qingdao Tshwane Portland Los Angeles Auckland Tokyo Beijing Tel Aviv – Yafo Milan New York City Medellín Bogotá Houston Hangzhou Delhi NCT Oslo Shenzhen Lima Mexico City Lisbon Heidelberg Nanjing Hong Kong Madrid Yokohama Istanbul Fuzhou Amsterdam Shanghai Karachi Dubai Nairobi Phoenix Qingdao Tshwane Portland Los Angeles Auckland Tokyo

Berlin Johannesburg Warsaw Hanoi Cape Town New Orleans Rome Freetown Sydney Seattle Casablanca Curitiba Durban (eThekwini) Amman Philadelphia Seoul Addis Ababa Dar es Salaam Chengdu São Paulo Accra Melbourne Dakar Dhaka (North & South) Santiago Singapore Bengaluru Chicago Boston Fortaleza Washington, DC Buenos Aires Kuala Lumpur Berlin Johannesburg Warsaw Hanoi Cape Town New Orleans Rome Freetown Sydney Seattle Casablanca Curitiba Durban (eThekwini) Amman Philadelphia Seoul Addis Ababa Dar es Salaam Chengdu São Paulo Accra Melbourne Dakar Dhaka (North & South) Santiago Singapore Bengaluru Chicago Boston Fortaleza Washington, DC Buenos Aires Kuala Lumpur

Ekurhuleni London Austin Stockholm Montréal Jakarta Rotterdam Salvador Ho Chi Minh City Quito Zhenjiang Athens Copenhagen Guangzhou Rio de Janeiro Mumbai Toronto San Francisco Miami Dalian Ahmedabad Lagos Abidjan Paris Guadalajara Quezon City Barcelona Chennai Vancouver Wuhan Bangkok Ekurhuleni London Austin Stockholm Montréal Jakarta Rotterdam Salvador Ho Chi Minh City Quito Zhenjiang Athens Copenhagen Guangzhou Rio de Janeiro Mumbai Toronto San Francisco Miami Dalian Ahmedabad Lagos Abidjan Paris Guadalajara Quezon City Barcelona Chennai Vancouver Wuhan Bangkok