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

Curitiba Mexico City Johannesburg Ho Chi Minh City Dalian Rio de Janeiro Shanghai Copenhagen Quito Phoenix Lima Tshwane Nairobi Singapore Mumbai Montréal Melbourne Paris Boston Accra Sydney Chicago São Paulo Wuhan Qingdao Santiago Durban (eThekwini) Hanoi Stockholm Toronto Istanbul Rotterdam Portland Curitiba Mexico City Johannesburg Ho Chi Minh City Dalian Rio de Janeiro Shanghai Copenhagen Quito Phoenix Lima Tshwane Nairobi Singapore Mumbai Montréal Melbourne Paris Boston Accra Sydney Chicago São Paulo Wuhan Qingdao Santiago Durban (eThekwini) Hanoi Stockholm Toronto Istanbul Rotterdam Portland

Zhenjiang Madrid Barcelona Dubai Bengaluru New Orleans Quezon City Houston Chennai Addis Ababa Vancouver Miami Bangkok Guangzhou Salvador Dhaka (North & South) Ahmedabad Karachi Freetown Seoul Jakarta Beijing Athens Berlin Casablanca Guadalajara Philadelphia Auckland Ekurhuleni Delhi NCT San Francisco Fortaleza Oslo Zhenjiang Madrid Barcelona Dubai Bengaluru New Orleans Quezon City Houston Chennai Addis Ababa Vancouver Miami Bangkok Guangzhou Salvador Dhaka (North & South) Ahmedabad Karachi Freetown Seoul Jakarta Beijing Athens Berlin Casablanca Guadalajara Philadelphia Auckland Ekurhuleni Delhi NCT San Francisco Fortaleza Oslo

Chengdu Los Angeles Abidjan Cape Town Amman Nanjing Tel Aviv – Yafo Buenos Aires Hangzhou Heidelberg Amsterdam Austin Hong Kong Dar es Salaam Yokohama New York City Medellín Warsaw Rome Fuzhou Washington, DC Dakar Kuala Lumpur Bogotá Lagos London Tokyo Lisbon Shenzhen Milan Seattle Chengdu Los Angeles Abidjan Cape Town Amman Nanjing Tel Aviv – Yafo Buenos Aires Hangzhou Heidelberg Amsterdam Austin Hong Kong Dar es Salaam Yokohama New York City Medellín Warsaw Rome Fuzhou Washington, DC Dakar Kuala Lumpur Bogotá Lagos London Tokyo Lisbon Shenzhen Milan Seattle