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

Warsaw Zhenjiang Barcelona Los Angeles Boston Berlin Curitiba Guadalajara Dakar Santiago Yokohama Wuhan Singapore Ahmedabad Seoul Tel Aviv – Yafo Mumbai Durban (eThekwini) Stockholm Dhaka (North & South) Quito London Seattle Amsterdam Johannesburg Athens New Orleans Rome Tokyo Melbourne Miami Dar es Salaam Chengdu Warsaw Zhenjiang Barcelona Los Angeles Boston Berlin Curitiba Guadalajara Dakar Santiago Yokohama Wuhan Singapore Ahmedabad Seoul Tel Aviv – Yafo Mumbai Durban (eThekwini) Stockholm Dhaka (North & South) Quito London Seattle Amsterdam Johannesburg Athens New Orleans Rome Tokyo Melbourne Miami Dar es Salaam Chengdu

Quezon City Ekurhuleni Lisbon Lagos Freetown Bengaluru Salvador Fuzhou São Paulo Portland Chicago Hanoi Philadelphia Auckland Nairobi Rotterdam Washington, DC Montréal Austin Madrid Vancouver Mexico City Guangzhou Shanghai Karachi Heidelberg Istanbul Lima Paris Dubai Qingdao Copenhagen San Francisco Quezon City Ekurhuleni Lisbon Lagos Freetown Bengaluru Salvador Fuzhou São Paulo Portland Chicago Hanoi Philadelphia Auckland Nairobi Rotterdam Washington, DC Montréal Austin Madrid Vancouver Mexico City Guangzhou Shanghai Karachi Heidelberg Istanbul Lima Paris Dubai Qingdao Copenhagen San Francisco

Houston Rio de Janeiro Cape Town Oslo Amman Delhi NCT Buenos Aires Milan Beijing Sydney Fortaleza Ho Chi Minh City Dalian Accra Hangzhou Casablanca Shenzhen Bangkok Jakarta Phoenix Hong Kong Toronto New York City Addis Ababa Tshwane Bogotá Kuala Lumpur Chennai Abidjan Nanjing Medellín Houston Rio de Janeiro Cape Town Oslo Amman Delhi NCT Buenos Aires Milan Beijing Sydney Fortaleza Ho Chi Minh City Dalian Accra Hangzhou Casablanca Shenzhen Bangkok Jakarta Phoenix Hong Kong Toronto New York City Addis Ababa Tshwane Bogotá Kuala Lumpur Chennai Abidjan Nanjing Medellín