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

Accra Melbourne Mexico City Dalian Abidjan Rome London Lima Shanghai Berlin Ho Chi Minh City Amsterdam Tel Aviv – Yafo San Francisco Quito Tokyo Hanoi Chennai Dubai Athens Singapore Nanjing Guadalajara New York City Portland Tshwane Rotterdam Phoenix Mumbai Johannesburg Miami Madrid Barcelona Accra Melbourne Mexico City Dalian Abidjan Rome London Lima Shanghai Berlin Ho Chi Minh City Amsterdam Tel Aviv – Yafo San Francisco Quito Tokyo Hanoi Chennai Dubai Athens Singapore Nanjing Guadalajara New York City Portland Tshwane Rotterdam Phoenix Mumbai Johannesburg Miami Madrid Barcelona

Hangzhou Vancouver Ahmedabad Salvador Warsaw Houston Chicago Stockholm Auckland Washington, DC Amman Bogotá Heidelberg Istanbul Los Angeles Curitiba Delhi NCT Durban (eThekwini) Seattle Toronto Philadelphia Montréal Quezon City Jakarta Oslo Boston Bengaluru Austin Lisbon Nairobi Dakar Guangzhou Milan Hangzhou Vancouver Ahmedabad Salvador Warsaw Houston Chicago Stockholm Auckland Washington, DC Amman Bogotá Heidelberg Istanbul Los Angeles Curitiba Delhi NCT Durban (eThekwini) Seattle Toronto Philadelphia Montréal Quezon City Jakarta Oslo Boston Bengaluru Austin Lisbon Nairobi Dakar Guangzhou Milan

Fuzhou Seoul Casablanca Kuala Lumpur Dar es Salaam Paris Qingdao Copenhagen Santiago Yokohama Beijing Cape Town Ekurhuleni Wuhan Freetown Hong Kong Addis Ababa Dhaka (North & South) Fortaleza Sydney Medellín Buenos Aires New Orleans São Paulo Chengdu Rio de Janeiro Shenzhen Lagos Zhenjiang Karachi Bangkok Fuzhou Seoul Casablanca Kuala Lumpur Dar es Salaam Paris Qingdao Copenhagen Santiago Yokohama Beijing Cape Town Ekurhuleni Wuhan Freetown Hong Kong Addis Ababa Dhaka (North & South) Fortaleza Sydney Medellín Buenos Aires New Orleans São Paulo Chengdu Rio de Janeiro Shenzhen Lagos Zhenjiang Karachi Bangkok