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

Paris Istanbul Guangzhou Milan Phoenix Lima Mexico City Abidjan Oslo Beijing Singapore Chennai Tel Aviv – Yafo Hangzhou Rio de Janeiro Portland San Francisco Dubai Copenhagen Quezon City Qingdao Philadelphia Wuhan Barcelona Miami Fuzhou Dakar Hong Kong New York City Santiago Johannesburg Mumbai Nanjing Paris Istanbul Guangzhou Milan Phoenix Lima Mexico City Abidjan Oslo Beijing Singapore Chennai Tel Aviv – Yafo Hangzhou Rio de Janeiro Portland San Francisco Dubai Copenhagen Quezon City Qingdao Philadelphia Wuhan Barcelona Miami Fuzhou Dakar Hong Kong New York City Santiago Johannesburg Mumbai Nanjing

Curitiba Fortaleza Addis Ababa Yokohama Cape Town Seattle Lagos Madrid Quito Stockholm Montréal Durban (eThekwini) Freetown Accra Athens Bengaluru Guadalajara Shanghai Rome Karachi Rotterdam Jakarta New Orleans Lisbon Chengdu Austin Ahmedabad Salvador Heidelberg Chicago Dalian Tokyo Dhaka (North & South) Curitiba Fortaleza Addis Ababa Yokohama Cape Town Seattle Lagos Madrid Quito Stockholm Montréal Durban (eThekwini) Freetown Accra Athens Bengaluru Guadalajara Shanghai Rome Karachi Rotterdam Jakarta New Orleans Lisbon Chengdu Austin Ahmedabad Salvador Heidelberg Chicago Dalian Tokyo Dhaka (North & South)

Dar es Salaam Medellín São Paulo Kuala Lumpur Shenzhen Seoul Casablanca Melbourne Auckland Hanoi Bogotá Boston Washington, DC Toronto Delhi NCT London Nairobi Sydney Amman Vancouver Warsaw Ekurhuleni Zhenjiang Bangkok Buenos Aires Los Angeles Berlin Amsterdam Houston Ho Chi Minh City Tshwane Dar es Salaam Medellín São Paulo Kuala Lumpur Shenzhen Seoul Casablanca Melbourne Auckland Hanoi Bogotá Boston Washington, DC Toronto Delhi NCT London Nairobi Sydney Amman Vancouver Warsaw Ekurhuleni Zhenjiang Bangkok Buenos Aires Los Angeles Berlin Amsterdam Houston Ho Chi Minh City Tshwane