Mumbai
New Orleans
Berlin
Nanjing
Tokyo
Cape Town
Nairobi
Lagos
New York City
Montréal
Freetown
Accra
Dakar
Phoenix
Vancouver
Boston
Barcelona
Philadelphia
Chennai
Jakarta
Johannesburg
Amman
Heidelberg
Chicago
Copenhagen
Dalian
Quezon City
Bengaluru
Hong Kong
Medellín
Kuala Lumpur
Portland
Mumbai
New Orleans
Berlin
Nanjing
Tokyo
Cape Town
Nairobi
Lagos
New York City
Montréal
Freetown
Accra
Dakar
Phoenix
Vancouver
Boston
Barcelona
Philadelphia
Chennai
Jakarta
Johannesburg
Amman
Heidelberg
Chicago
Copenhagen
Dalian
Quezon City
Bengaluru
Hong Kong
Medellín
Kuala Lumpur
Portland
Melbourne
Madrid
Durban (eThekwini)
Dhaka (North & South)
Bogotá
Buenos Aires
Rotterdam
Los Angeles
Guadalajara
Karachi
Mexico City
Curitiba
Shanghai
Amsterdam
Dubai
Auckland
Kolkata
Istanbul
Singapore
Toronto
Oslo
Stockholm
Ho Chi Minh City
Santiago
Rio de Janeiro
Wuhan
Washington, DC
Beijing
Austin
Delhi NCT
Addis Ababa
Hangzhou
Melbourne
Madrid
Durban (eThekwini)
Dhaka (North & South)
Bogotá
Buenos Aires
Rotterdam
Los Angeles
Guadalajara
Karachi
Mexico City
Curitiba
Shanghai
Amsterdam
Dubai
Auckland
Kolkata
Istanbul
Singapore
Toronto
Oslo
Stockholm
Ho Chi Minh City
Santiago
Rio de Janeiro
Wuhan
Washington, DC
Beijing
Austin
Delhi NCT
Addis Ababa
Hangzhou
Seattle
Dar es Salaam
Abidjan
São Paulo
Warsaw
Tel Aviv – Yafo
San Francisco
Guangzhou
Salvador
Bangkok
Miami
Yokohama
Lima
Quito
Shenzhen
Milan
London
Qingdao
Rome
Sydney
Tshwane
Paris
Lisbon
Fuzhou
Hanoi
Houston
Ekurhuleni
Seoul
Zhenjiang
Athens
Chengdu
Seattle
Dar es Salaam
Abidjan
São Paulo
Warsaw
Tel Aviv – Yafo
San Francisco
Guangzhou
Salvador
Bangkok
Miami
Yokohama
Lima
Quito
Shenzhen
Milan
London
Qingdao
Rome
Sydney
Tshwane
Paris
Lisbon
Fuzhou
Hanoi
Houston
Ekurhuleni
Seoul
Zhenjiang
Athens
Chengdu
C40 has
96
member cities
Making up more than
20%
of the global economy1
Comprised of
582+
million people2
C40 WORLD MAYORS SUMMIT
Buenos Aires
19–21 October 2022
The C40 World Mayors Summit is our triennial climate action conference organised in partnership with a C40 member city. This year’s Summit, hosted by the City of Buenos Aires from 19–21 October 2022, will be a hybrid in-person and virtual event.
Latest News
Sources:
1. 24% of global GDP (2019). Oxford Economics data, C40 modeling & World Bank for global GDP.
2. Oxford Economics data & C40 modelling, April 2021.