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

Ahmedabad Madrid Lagos São Paulo Chennai Philadelphia San Francisco New Orleans Buenos Aires Boston Delhi NCT Milan Rio de Janeiro Rome Copenhagen Lisbon Amman Karachi Oslo Dubai Chengdu Hanoi Melbourne Quezon City Curitiba Auckland Portland Santiago Durban (eThekwini) Singapore Addis Ababa Freetown Ahmedabad Madrid Lagos São Paulo Chennai Philadelphia San Francisco New Orleans Buenos Aires Boston Delhi NCT Milan Rio de Janeiro Rome Copenhagen Lisbon Amman Karachi Oslo Dubai Chengdu Hanoi Melbourne Quezon City Curitiba Auckland Portland Santiago Durban (eThekwini) Singapore Addis Ababa Freetown

Shenzhen Bengaluru Fortaleza Hong Kong Bogotá Chicago Los Angeles Barcelona Ekurhuleni Guadalajara Warsaw Dar es Salaam Abidjan Hangzhou Nanjing Quito Sydney Wuhan Tokyo Bangkok Rotterdam Accra Qingdao Tel Aviv – Yafo Medellín Stockholm Vancouver Kuala Lumpur Seattle Cape Town Jakarta Fuzhou Shenzhen Bengaluru Fortaleza Hong Kong Bogotá Chicago Los Angeles Barcelona Ekurhuleni Guadalajara Warsaw Dar es Salaam Abidjan Hangzhou Nanjing Quito Sydney Wuhan Tokyo Bangkok Rotterdam Accra Qingdao Tel Aviv – Yafo Medellín Stockholm Vancouver Kuala Lumpur Seattle Cape Town Jakarta Fuzhou

Yokohama Istanbul Phoenix Washington, DC Houston Toronto Mexico City Beijing Salvador Guangzhou Shanghai Ho Chi Minh City Zhenjiang Berlin New York City Dhaka (North & South) Dalian London Amsterdam Mumbai Athens Seoul Montréal Paris Johannesburg Nairobi Austin Lima Heidelberg Tshwane Dakar Miami Yokohama Istanbul Phoenix Washington, DC Houston Toronto Mexico City Beijing Salvador Guangzhou Shanghai Ho Chi Minh City Zhenjiang Berlin New York City Dhaka (North & South) Dalian London Amsterdam Mumbai Athens Seoul Montréal Paris Johannesburg Nairobi Austin Lima Heidelberg Tshwane Dakar Miami