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

Rio de Janeiro Zhenjiang Madrid London Johannesburg Houston Curitiba Singapore Karachi Sydney Ahmedabad Quezon City Athens Dakar New York City Kuala Lumpur Abidjan Yokohama Tshwane Fuzhou Salvador Auckland Santiago Bangkok Lagos Tokyo San Francisco Tel Aviv – Yafo Lisbon Amman Lima Beijing Chennai Rio de Janeiro Zhenjiang Madrid London Johannesburg Houston Curitiba Singapore Karachi Sydney Ahmedabad Quezon City Athens Dakar New York City Kuala Lumpur Abidjan Yokohama Tshwane Fuzhou Salvador Auckland Santiago Bangkok Lagos Tokyo San Francisco Tel Aviv – Yafo Lisbon Amman Lima Beijing Chennai

Philadelphia Mexico City Cape Town Ekurhuleni Rome Shanghai Rotterdam Buenos Aires Istanbul Dhaka (North & South) Phoenix Durban (eThekwini) New Orleans Chengdu Bengaluru Bogotá Jakarta Amsterdam Hangzhou Accra Guadalajara Copenhagen Dar es Salaam Ho Chi Minh City Medellín Fortaleza Barcelona Dubai Chicago Seattle Delhi NCT Miami Nanjing Philadelphia Mexico City Cape Town Ekurhuleni Rome Shanghai Rotterdam Buenos Aires Istanbul Dhaka (North & South) Phoenix Durban (eThekwini) New Orleans Chengdu Bengaluru Bogotá Jakarta Amsterdam Hangzhou Accra Guadalajara Copenhagen Dar es Salaam Ho Chi Minh City Medellín Fortaleza Barcelona Dubai Chicago Seattle Delhi NCT Miami Nanjing

Austin Oslo Heidelberg Vancouver Addis Ababa Portland Dalian Melbourne Toronto Warsaw Quito Wuhan Seoul Montréal Washington, DC Casablanca Guangzhou Los Angeles Nairobi Stockholm Boston Hong Kong Hanoi Freetown Berlin Mumbai Milan Paris Qingdao Shenzhen São Paulo Austin Oslo Heidelberg Vancouver Addis Ababa Portland Dalian Melbourne Toronto Warsaw Quito Wuhan Seoul Montréal Washington, DC Casablanca Guangzhou Los Angeles Nairobi Stockholm Boston Hong Kong Hanoi Freetown Berlin Mumbai Milan Paris Qingdao Shenzhen São Paulo