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

Johannesburg Curitiba Tshwane Washington, DC Boston Singapore Delhi NCT Lima Seoul Accra Lagos Rome Ahmedabad Madrid Los Angeles Portland New York City New Orleans Tokyo Buenos Aires Santiago San Francisco Fortaleza Lisbon Beijing Dar es Salaam São Paulo Freetown Houston Auckland Hong Kong Chennai Chengdu Johannesburg Curitiba Tshwane Washington, DC Boston Singapore Delhi NCT Lima Seoul Accra Lagos Rome Ahmedabad Madrid Los Angeles Portland New York City New Orleans Tokyo Buenos Aires Santiago San Francisco Fortaleza Lisbon Beijing Dar es Salaam São Paulo Freetown Houston Auckland Hong Kong Chennai Chengdu

Chicago Austin Dubai Jakarta Berlin Shenzhen Wuhan Philadelphia Zhenjiang Bengaluru Phoenix Milan Salvador Addis Ababa Hanoi Mexico City Athens Bogotá Karachi Nanjing Ekurhuleni Mumbai Paris Nairobi Dakar Toronto Bangkok Qingdao Stockholm Fuzhou Sydney Amsterdam Quito Chicago Austin Dubai Jakarta Berlin Shenzhen Wuhan Philadelphia Zhenjiang Bengaluru Phoenix Milan Salvador Addis Ababa Hanoi Mexico City Athens Bogotá Karachi Nanjing Ekurhuleni Mumbai Paris Nairobi Dakar Toronto Bangkok Qingdao Stockholm Fuzhou Sydney Amsterdam Quito

Rio de Janeiro Vancouver Kuala Lumpur Durban (eThekwini) Oslo Istanbul Cape Town Ho Chi Minh City Quezon City Tel Aviv – Yafo Amman Seattle Melbourne London Montréal Rotterdam Hangzhou Medellín Guadalajara Guangzhou Abidjan Miami Yokohama Casablanca Shanghai Dalian Warsaw Heidelberg Barcelona Dhaka (North & South) Copenhagen Rio de Janeiro Vancouver Kuala Lumpur Durban (eThekwini) Oslo Istanbul Cape Town Ho Chi Minh City Quezon City Tel Aviv – Yafo Amman Seattle Melbourne London Montréal Rotterdam Hangzhou Medellín Guadalajara Guangzhou Abidjan Miami Yokohama Casablanca Shanghai Dalian Warsaw Heidelberg Barcelona Dhaka (North & South) Copenhagen