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

Santiago Rotterdam Athens Portland Fuzhou Madrid Stockholm Austin Addis Ababa New Orleans Guadalajara Dhaka (North & South) Quito São Paulo Houston Shanghai Johannesburg Nanjing Chicago Miami Lagos Dalian Qingdao Heidelberg Lima Vancouver Philadelphia Sydney Copenhagen Dubai Shenzhen Tokyo London Santiago Rotterdam Athens Portland Fuzhou Madrid Stockholm Austin Addis Ababa New Orleans Guadalajara Dhaka (North & South) Quito São Paulo Houston Shanghai Johannesburg Nanjing Chicago Miami Lagos Dalian Qingdao Heidelberg Lima Vancouver Philadelphia Sydney Copenhagen Dubai Shenzhen Tokyo London

Phoenix Seoul Ekurhuleni Zhenjiang Jakarta Hong Kong Seattle Singapore Rio de Janeiro Beijing Barcelona Hanoi Cape Town Bengaluru Oslo Curitiba Karachi Chengdu Buenos Aires Berlin Lisbon Milan Abidjan Durban (eThekwini) Boston Washington, DC Melbourne Auckland Tel Aviv – Yafo Quezon City Yokohama Paris Kuala Lumpur Phoenix Seoul Ekurhuleni Zhenjiang Jakarta Hong Kong Seattle Singapore Rio de Janeiro Beijing Barcelona Hanoi Cape Town Bengaluru Oslo Curitiba Karachi Chengdu Buenos Aires Berlin Lisbon Milan Abidjan Durban (eThekwini) Boston Washington, DC Melbourne Auckland Tel Aviv – Yafo Quezon City Yokohama Paris Kuala Lumpur

Wuhan Ho Chi Minh City Accra Dar es Salaam Mumbai Amsterdam Amman Chennai Salvador Nairobi San Francisco Los Angeles Hangzhou Toronto Dakar Delhi NCT Rome Bogotá Medellín New York City Bangkok Guangzhou Fortaleza Casablanca Istanbul Tshwane Freetown Warsaw Montréal Ahmedabad Mexico City Wuhan Ho Chi Minh City Accra Dar es Salaam Mumbai Amsterdam Amman Chennai Salvador Nairobi San Francisco Los Angeles Hangzhou Toronto Dakar Delhi NCT Rome Bogotá Medellín New York City Bangkok Guangzhou Fortaleza Casablanca Istanbul Tshwane Freetown Warsaw Montréal Ahmedabad Mexico City