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

Barcelona Oslo Medellín Freetown Ekurhuleni Tshwane Mumbai Montréal Dubai Philadelphia Fuzhou Yokohama Wuhan San Francisco Rio de Janeiro Heidelberg Chennai Austin Boston Bangkok Madrid Amman Seattle Tokyo Istanbul Dar es Salaam Ho Chi Minh City Quito Washington, DC Houston Auckland Portland Beijing Barcelona Oslo Medellín Freetown Ekurhuleni Tshwane Mumbai Montréal Dubai Philadelphia Fuzhou Yokohama Wuhan San Francisco Rio de Janeiro Heidelberg Chennai Austin Boston Bangkok Madrid Amman Seattle Tokyo Istanbul Dar es Salaam Ho Chi Minh City Quito Washington, DC Houston Auckland Portland Beijing

Melbourne Bogotá Paris London Hanoi Delhi NCT Zhenjiang Shanghai Los Angeles Athens Fortaleza Rome Berlin Casablanca Durban (eThekwini) Addis Ababa Hong Kong Miami Chicago Sydney Seoul Phoenix São Paulo Salvador Accra Singapore Kuala Lumpur New Orleans Cape Town Lagos Vancouver Lisbon Karachi Melbourne Bogotá Paris London Hanoi Delhi NCT Zhenjiang Shanghai Los Angeles Athens Fortaleza Rome Berlin Casablanca Durban (eThekwini) Addis Ababa Hong Kong Miami Chicago Sydney Seoul Phoenix São Paulo Salvador Accra Singapore Kuala Lumpur New Orleans Cape Town Lagos Vancouver Lisbon Karachi

Nanjing Warsaw Lima Johannesburg Abidjan Guadalajara Rotterdam Ahmedabad Santiago Hangzhou Guangzhou Curitiba Stockholm Jakarta Dakar Bengaluru Copenhagen Dalian Quezon City Tel Aviv – Yafo Mexico City New York City Shenzhen Buenos Aires Dhaka (North & South) Chengdu Milan Nairobi Amsterdam Toronto Qingdao Nanjing Warsaw Lima Johannesburg Abidjan Guadalajara Rotterdam Ahmedabad Santiago Hangzhou Guangzhou Curitiba Stockholm Jakarta Dakar Bengaluru Copenhagen Dalian Quezon City Tel Aviv – Yafo Mexico City New York City Shenzhen Buenos Aires Dhaka (North & South) Chengdu Milan Nairobi Amsterdam Toronto Qingdao