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

Wuhan Kuala Lumpur Chennai Chengdu Lisbon Athens Singapore Johannesburg Medellín Toronto Salvador Hangzhou Chicago Guadalajara Mumbai Jakarta Abidjan Guangzhou Amsterdam Addis Ababa Beijing Hanoi Ahmedabad Curitiba Rotterdam Houston Lagos Santiago Portland Fortaleza Rio de Janeiro Shanghai Seoul Wuhan Kuala Lumpur Chennai Chengdu Lisbon Athens Singapore Johannesburg Medellín Toronto Salvador Hangzhou Chicago Guadalajara Mumbai Jakarta Abidjan Guangzhou Amsterdam Addis Ababa Beijing Hanoi Ahmedabad Curitiba Rotterdam Houston Lagos Santiago Portland Fortaleza Rio de Janeiro Shanghai Seoul

Dhaka (North & South) Milan Stockholm Yokohama New York City Sydney Melbourne London Vancouver Miami Dar es Salaam Zhenjiang Cape Town Heidelberg Phoenix Fuzhou Bangkok Quezon City Delhi NCT Tokyo Dalian Karachi Madrid Berlin Montréal Mexico City São Paulo Shenzhen Boston Tel Aviv – Yafo Ekurhuleni Dakar San Francisco Dhaka (North & South) Milan Stockholm Yokohama New York City Sydney Melbourne London Vancouver Miami Dar es Salaam Zhenjiang Cape Town Heidelberg Phoenix Fuzhou Bangkok Quezon City Delhi NCT Tokyo Dalian Karachi Madrid Berlin Montréal Mexico City São Paulo Shenzhen Boston Tel Aviv – Yafo Ekurhuleni Dakar San Francisco

Hong Kong Barcelona Los Angeles Nairobi Warsaw Tshwane Auckland Buenos Aires Bengaluru Amman Washington, DC Paris Casablanca Dubai Philadelphia New Orleans Bogotá Ho Chi Minh City Durban (eThekwini) Freetown Lima Austin Seattle Accra Nanjing Copenhagen Qingdao Rome Quito Istanbul Oslo Hong Kong Barcelona Los Angeles Nairobi Warsaw Tshwane Auckland Buenos Aires Bengaluru Amman Washington, DC Paris Casablanca Dubai Philadelphia New Orleans Bogotá Ho Chi Minh City Durban (eThekwini) Freetown Lima Austin Seattle Accra Nanjing Copenhagen Qingdao Rome Quito Istanbul Oslo