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

Abidjan São Paulo Toronto Chicago Sydney Amsterdam Miami New Orleans Chennai London Chengdu Rio de Janeiro Hong Kong Rotterdam Fuzhou Seattle Singapore Philadelphia Phoenix Mexico City Quezon City Bengaluru Curitiba Warsaw Houston Nairobi Paris New York City Rome Casablanca Boston Bangkok Montréal Abidjan São Paulo Toronto Chicago Sydney Amsterdam Miami New Orleans Chennai London Chengdu Rio de Janeiro Hong Kong Rotterdam Fuzhou Seattle Singapore Philadelphia Phoenix Mexico City Quezon City Bengaluru Curitiba Warsaw Houston Nairobi Paris New York City Rome Casablanca Boston Bangkok Montréal

Quito Kuala Lumpur Barcelona San Francisco Washington, DC Hanoi Zhenjiang Copenhagen Buenos Aires Yokohama Medellín Lagos Santiago Guadalajara Mumbai Ho Chi Minh City Stockholm Dhaka (North & South) Cape Town Beijing Freetown Nanjing Melbourne Tokyo Lisbon Istanbul Bogotá Milan Lima Madrid Tshwane Wuhan Amman Quito Kuala Lumpur Barcelona San Francisco Washington, DC Hanoi Zhenjiang Copenhagen Buenos Aires Yokohama Medellín Lagos Santiago Guadalajara Mumbai Ho Chi Minh City Stockholm Dhaka (North & South) Cape Town Beijing Freetown Nanjing Melbourne Tokyo Lisbon Istanbul Bogotá Milan Lima Madrid Tshwane Wuhan Amman

Oslo Athens Shanghai Accra Qingdao Austin Addis Ababa Shenzhen Vancouver Los Angeles Ekurhuleni Johannesburg Dakar Seoul Dalian Dubai Dar es Salaam Hangzhou Karachi Salvador Delhi NCT Ahmedabad Berlin Fortaleza Durban (eThekwini) Auckland Jakarta Guangzhou Heidelberg Tel Aviv – Yafo Portland Oslo Athens Shanghai Accra Qingdao Austin Addis Ababa Shenzhen Vancouver Los Angeles Ekurhuleni Johannesburg Dakar Seoul Dalian Dubai Dar es Salaam Hangzhou Karachi Salvador Delhi NCT Ahmedabad Berlin Fortaleza Durban (eThekwini) Auckland Jakarta Guangzhou Heidelberg Tel Aviv – Yafo Portland