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

Houston Karachi Oslo Sydney Athens Guangzhou Tel Aviv – Yafo Washington, DC Wuhan Lagos Mumbai Yokohama Accra Stockholm Dalian Montréal Berlin Freetown Copenhagen San Francisco Vancouver Bengaluru Delhi NCT Dakar Curitiba Buenos Aires Zhenjiang Boston Rome Paris Auckland Dar es Salaam Chennai Houston Karachi Oslo Sydney Athens Guangzhou Tel Aviv – Yafo Washington, DC Wuhan Lagos Mumbai Yokohama Accra Stockholm Dalian Montréal Berlin Freetown Copenhagen San Francisco Vancouver Bengaluru Delhi NCT Dakar Curitiba Buenos Aires Zhenjiang Boston Rome Paris Auckland Dar es Salaam Chennai

Johannesburg Rio de Janeiro Seattle Tshwane Toronto Warsaw São Paulo Melbourne Santiago New York City Qingdao Mexico City Chicago Ekurhuleni Dhaka (North & South) Miami Amsterdam Fortaleza Chengdu Salvador Singapore Shenzhen Casablanca Lisbon Durban (eThekwini) Philadelphia Portland Heidelberg Lima Kuala Lumpur London Madrid Cape Town Johannesburg Rio de Janeiro Seattle Tshwane Toronto Warsaw São Paulo Melbourne Santiago New York City Qingdao Mexico City Chicago Ekurhuleni Dhaka (North & South) Miami Amsterdam Fortaleza Chengdu Salvador Singapore Shenzhen Casablanca Lisbon Durban (eThekwini) Philadelphia Portland Heidelberg Lima Kuala Lumpur London Madrid Cape Town

Fuzhou Tokyo Bogotá Hangzhou Quezon City Amman Austin Milan Addis Ababa Medellín Nanjing Ho Chi Minh City Quito Nairobi Barcelona Rotterdam Los Angeles Hong Kong Seoul Shanghai Abidjan Phoenix Jakarta Guadalajara Bangkok Hanoi Beijing Ahmedabad Dubai New Orleans Istanbul Fuzhou Tokyo Bogotá Hangzhou Quezon City Amman Austin Milan Addis Ababa Medellín Nanjing Ho Chi Minh City Quito Nairobi Barcelona Rotterdam Los Angeles Hong Kong Seoul Shanghai Abidjan Phoenix Jakarta Guadalajara Bangkok Hanoi Beijing Ahmedabad Dubai New Orleans Istanbul