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

Curitiba Ho Chi Minh City Beijing Rotterdam Dubai Melbourne Chicago Singapore Zhenjiang Lagos Shenzhen Istanbul Bangkok Wuhan Washington, DC Salvador Ahmedabad Fortaleza Athens Qingdao New Orleans Warsaw Heidelberg Dar es Salaam Boston Accra Jakarta Paris Hanoi Seattle Lisbon Addis Ababa Kuala Lumpur Curitiba Ho Chi Minh City Beijing Rotterdam Dubai Melbourne Chicago Singapore Zhenjiang Lagos Shenzhen Istanbul Bangkok Wuhan Washington, DC Salvador Ahmedabad Fortaleza Athens Qingdao New Orleans Warsaw Heidelberg Dar es Salaam Boston Accra Jakarta Paris Hanoi Seattle Lisbon Addis Ababa Kuala Lumpur

Johannesburg Hangzhou Chengdu Buenos Aires Dakar Casablanca Nairobi Bogotá Vancouver Auckland Guadalajara Nanjing Ekurhuleni Medellín Sydney Amsterdam Los Angeles Delhi NCT Seoul Bengaluru Phoenix Dalian Tshwane New York City Rome Austin Berlin Toronto Lima Abidjan Karachi Montréal Dhaka (North & South) Johannesburg Hangzhou Chengdu Buenos Aires Dakar Casablanca Nairobi Bogotá Vancouver Auckland Guadalajara Nanjing Ekurhuleni Medellín Sydney Amsterdam Los Angeles Delhi NCT Seoul Bengaluru Phoenix Dalian Tshwane New York City Rome Austin Berlin Toronto Lima Abidjan Karachi Montréal Dhaka (North & South)

Stockholm San Francisco Quezon City Santiago Quito Oslo Portland Durban (eThekwini) Freetown Amman Yokohama São Paulo Madrid Cape Town Tel Aviv – Yafo Guangzhou Milan Barcelona Hong Kong Miami Philadelphia Shanghai London Rio de Janeiro Tokyo Chennai Mexico City Fuzhou Copenhagen Houston Mumbai Stockholm San Francisco Quezon City Santiago Quito Oslo Portland Durban (eThekwini) Freetown Amman Yokohama São Paulo Madrid Cape Town Tel Aviv – Yafo Guangzhou Milan Barcelona Hong Kong Miami Philadelphia Shanghai London Rio de Janeiro Tokyo Chennai Mexico City Fuzhou Copenhagen Houston Mumbai