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

Paris Dar es Salaam Kuala Lumpur Rome Buenos Aires Mexico City Toronto Abidjan Quito Dalian Philadelphia Auckland Houston Guangzhou Tshwane Dakar Heidelberg Freetown Berlin Barcelona Lima Seattle Copenhagen Montréal Delhi NCT Durban (eThekwini) Shanghai Rotterdam Lagos Warsaw Salvador Bengaluru Amman Paris Dar es Salaam Kuala Lumpur Rome Buenos Aires Mexico City Toronto Abidjan Quito Dalian Philadelphia Auckland Houston Guangzhou Tshwane Dakar Heidelberg Freetown Berlin Barcelona Lima Seattle Copenhagen Montréal Delhi NCT Durban (eThekwini) Shanghai Rotterdam Lagos Warsaw Salvador Bengaluru Amman

Casablanca Rio de Janeiro Cape Town Medellín Seoul Melbourne London Karachi Singapore Shenzhen San Francisco Nairobi Phoenix Ho Chi Minh City Chicago Portland Fuzhou Dubai Oslo Quezon City Istanbul Wuhan Nanjing Washington, DC Boston Beijing Johannesburg Chengdu Lisbon Dhaka (North & South) Austin New York City Qingdao Casablanca Rio de Janeiro Cape Town Medellín Seoul Melbourne London Karachi Singapore Shenzhen San Francisco Nairobi Phoenix Ho Chi Minh City Chicago Portland Fuzhou Dubai Oslo Quezon City Istanbul Wuhan Nanjing Washington, DC Boston Beijing Johannesburg Chengdu Lisbon Dhaka (North & South) Austin New York City Qingdao

Guadalajara Chennai São Paulo Curitiba Mumbai Yokohama Milan Hong Kong Athens Ahmedabad Tokyo Accra Stockholm Vancouver Miami Tel Aviv – Yafo Ekurhuleni Hanoi New Orleans Amsterdam Addis Ababa Jakarta Los Angeles Fortaleza Bangkok Santiago Hangzhou Madrid Zhenjiang Sydney Bogotá Guadalajara Chennai São Paulo Curitiba Mumbai Yokohama Milan Hong Kong Athens Ahmedabad Tokyo Accra Stockholm Vancouver Miami Tel Aviv – Yafo Ekurhuleni Hanoi New Orleans Amsterdam Addis Ababa Jakarta Los Angeles Fortaleza Bangkok Santiago Hangzhou Madrid Zhenjiang Sydney Bogotá