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

Washington, DC Dhaka (North & South) Nanjing San Francisco Tshwane Heidelberg Bengaluru Amsterdam Hangzhou Chennai Ho Chi Minh City Delhi NCT Los Angeles Medellín Accra Amman Philadelphia Berlin Addis Ababa Chengdu Oslo New Orleans Nairobi Houston Istanbul Johannesburg Quezon City Dubai Tokyo Qingdao Casablanca Copenhagen Dakar Washington, DC Dhaka (North & South) Nanjing San Francisco Tshwane Heidelberg Bengaluru Amsterdam Hangzhou Chennai Ho Chi Minh City Delhi NCT Los Angeles Medellín Accra Amman Philadelphia Berlin Addis Ababa Chengdu Oslo New Orleans Nairobi Houston Istanbul Johannesburg Quezon City Dubai Tokyo Qingdao Casablanca Copenhagen Dakar

Abidjan New York City Hanoi Paris Freetown Dar es Salaam Auckland Santiago Rome Beijing Bangkok Bogotá Sydney Fortaleza Hong Kong Guangzhou Durban (eThekwini) Kuala Lumpur London Salvador Lagos Shenzhen Warsaw Barcelona Shanghai Zhenjiang Ekurhuleni Cape Town Yokohama Chicago Mexico City Singapore Jakarta Abidjan New York City Hanoi Paris Freetown Dar es Salaam Auckland Santiago Rome Beijing Bangkok Bogotá Sydney Fortaleza Hong Kong Guangzhou Durban (eThekwini) Kuala Lumpur London Salvador Lagos Shenzhen Warsaw Barcelona Shanghai Zhenjiang Ekurhuleni Cape Town Yokohama Chicago Mexico City Singapore Jakarta

Rio de Janeiro Wuhan Guadalajara Toronto Boston Dalian Tel Aviv – Yafo Rotterdam Mumbai São Paulo Seoul Austin Vancouver Fuzhou Madrid Quito Stockholm Ahmedabad Melbourne Phoenix Athens Portland Miami Milan Curitiba Seattle Buenos Aires Lisbon Karachi Lima Montréal Rio de Janeiro Wuhan Guadalajara Toronto Boston Dalian Tel Aviv – Yafo Rotterdam Mumbai São Paulo Seoul Austin Vancouver Fuzhou Madrid Quito Stockholm Ahmedabad Melbourne Phoenix Athens Portland Miami Milan Curitiba Seattle Buenos Aires Lisbon Karachi Lima Montréal