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

Milan Nanjing Seoul Bengaluru Hanoi Los Angeles Dhaka (North & South) Lisbon Zhenjiang Amman Sydney Dar es Salaam Mexico City Curitiba Jakarta Amsterdam Seattle Rio de Janeiro Chicago Warsaw Heidelberg San Francisco New Orleans Oslo Toronto Medellín Singapore Qingdao Ho Chi Minh City Quezon City Auckland Kuala Lumpur Freetown Milan Nanjing Seoul Bengaluru Hanoi Los Angeles Dhaka (North & South) Lisbon Zhenjiang Amman Sydney Dar es Salaam Mexico City Curitiba Jakarta Amsterdam Seattle Rio de Janeiro Chicago Warsaw Heidelberg San Francisco New Orleans Oslo Toronto Medellín Singapore Qingdao Ho Chi Minh City Quezon City Auckland Kuala Lumpur Freetown

Copenhagen Yokohama Berlin Hong Kong Ahmedabad Chennai Rotterdam Addis Ababa Beijing Tokyo Dubai Lagos Fuzhou Vancouver Boston Stockholm Houston Shanghai Salvador Istanbul Guangzhou Casablanca Guadalajara Hangzhou Rome Bogotá Abidjan Karachi Johannesburg Tel Aviv – Yafo Montréal Lima Philadelphia Copenhagen Yokohama Berlin Hong Kong Ahmedabad Chennai Rotterdam Addis Ababa Beijing Tokyo Dubai Lagos Fuzhou Vancouver Boston Stockholm Houston Shanghai Salvador Istanbul Guangzhou Casablanca Guadalajara Hangzhou Rome Bogotá Abidjan Karachi Johannesburg Tel Aviv – Yafo Montréal Lima Philadelphia

Buenos Aires Bangkok Ekurhuleni Phoenix Tshwane Barcelona Durban (eThekwini) Wuhan Dakar São Paulo Santiago London Paris Washington, DC Melbourne Madrid Chengdu Quito Miami Austin Accra Dalian Shenzhen Nairobi Cape Town Delhi NCT Portland Fortaleza Mumbai New York City Athens Buenos Aires Bangkok Ekurhuleni Phoenix Tshwane Barcelona Durban (eThekwini) Wuhan Dakar São Paulo Santiago London Paris Washington, DC Melbourne Madrid Chengdu Quito Miami Austin Accra Dalian Shenzhen Nairobi Cape Town Delhi NCT Portland Fortaleza Mumbai New York City Athens