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

New Orleans Curitiba Hanoi Washington, DC Chicago Singapore Vancouver Rio de Janeiro Shanghai Oslo Toronto Wuhan Auckland Sydney Cape Town Seattle Los Angeles Amsterdam Yokohama San Francisco Guadalajara London Chengdu Tokyo Madrid Miami Istanbul Quito Bengaluru Barcelona Tshwane Chennai São Paulo New Orleans Curitiba Hanoi Washington, DC Chicago Singapore Vancouver Rio de Janeiro Shanghai Oslo Toronto Wuhan Auckland Sydney Cape Town Seattle Los Angeles Amsterdam Yokohama San Francisco Guadalajara London Chengdu Tokyo Madrid Miami Istanbul Quito Bengaluru Barcelona Tshwane Chennai São Paulo

Milan Warsaw Bangkok Rome Berlin Philadelphia Nanjing Heidelberg Ho Chi Minh City Lima Rotterdam Dakar Dar es Salaam Buenos Aires Beijing Guangzhou Jakarta Dalian Ahmedabad Ekurhuleni Mexico City Salvador New York City Melbourne Lisbon Lagos Durban (eThekwini) Montréal Johannesburg Copenhagen Kuala Lumpur Addis Ababa Casablanca Milan Warsaw Bangkok Rome Berlin Philadelphia Nanjing Heidelberg Ho Chi Minh City Lima Rotterdam Dakar Dar es Salaam Buenos Aires Beijing Guangzhou Jakarta Dalian Ahmedabad Ekurhuleni Mexico City Salvador New York City Melbourne Lisbon Lagos Durban (eThekwini) Montréal Johannesburg Copenhagen Kuala Lumpur Addis Ababa Casablanca

Paris Tel Aviv – Yafo Nairobi Abidjan Qingdao Phoenix Santiago Mumbai Quezon City Amman Delhi NCT Hong Kong Athens Fuzhou Portland Shenzhen Karachi Fortaleza Zhenjiang Freetown Hangzhou Dhaka (North & South) Boston Medellín Austin Houston Accra Bogotá Seoul Dubai Stockholm Paris Tel Aviv – Yafo Nairobi Abidjan Qingdao Phoenix Santiago Mumbai Quezon City Amman Delhi NCT Hong Kong Athens Fuzhou Portland Shenzhen Karachi Fortaleza Zhenjiang Freetown Hangzhou Dhaka (North & South) Boston Medellín Austin Houston Accra Bogotá Seoul Dubai Stockholm