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

Chennai Salvador Mexico City Houston Bogotá Washington, DC Miami Los Angeles Hangzhou Phoenix Vancouver Sydney Zhenjiang Copenhagen Athens Wuhan Mumbai Guadalajara Rio de Janeiro Santiago Berlin Tshwane Durban (eThekwini) Chicago Addis Ababa Amsterdam Nairobi Toronto London Medellín Quezon City Dhaka (North & South) Chennai Salvador Mexico City Houston Bogotá Washington, DC Miami Los Angeles Hangzhou Phoenix Vancouver Sydney Zhenjiang Copenhagen Athens Wuhan Mumbai Guadalajara Rio de Janeiro Santiago Berlin Tshwane Durban (eThekwini) Chicago Addis Ababa Amsterdam Nairobi Toronto London Medellín Quezon City Dhaka (North & South)

New York City Seattle Guangzhou Montréal Shanghai Karachi Bangkok Heidelberg Melbourne Hanoi Abidjan Dalian Beijing Tokyo Kuala Lumpur Quito Boston Lisbon Dakar Bengaluru Stockholm Dubai Buenos Aires Jakarta Yokohama Hong Kong Singapore Oslo Nanjing Seoul Ekurhuleni Tel Aviv – Yafo New York City Seattle Guangzhou Montréal Shanghai Karachi Bangkok Heidelberg Melbourne Hanoi Abidjan Dalian Beijing Tokyo Kuala Lumpur Quito Boston Lisbon Dakar Bengaluru Stockholm Dubai Buenos Aires Jakarta Yokohama Hong Kong Singapore Oslo Nanjing Seoul Ekurhuleni Tel Aviv – Yafo

Portland Fuzhou Paris Lima Rome Chengdu Delhi NCT Barcelona San Francisco Ahmedabad Auckland Cape Town New Orleans Amman Madrid Milan Dar es Salaam Johannesburg Istanbul Freetown Ho Chi Minh City Philadelphia Lagos Qingdao São Paulo Kolkata Accra Warsaw Curitiba Austin Shenzhen Rotterdam Portland Fuzhou Paris Lima Rome Chengdu Delhi NCT Barcelona San Francisco Ahmedabad Auckland Cape Town New Orleans Amman Madrid Milan Dar es Salaam Johannesburg Istanbul Freetown Ho Chi Minh City Philadelphia Lagos Qingdao São Paulo Kolkata Accra Warsaw Curitiba Austin Shenzhen Rotterdam