A global network of mayors taking urgent action to confront the climate crisis and create a future where everyone can thrive.

Illustration by Erick M Ramos depicting a city scape, a person riding a bike down a road, and two people who are sat overlooking the city view. The illustration is a piece from C40's "Illustrating the Future We Want" campaign.
© Erick M Ramos
Explore our cities
C40 has 96 member cities
Making up more than 20% of the global economy1

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.

A graphic with a purple background containing icons created for the C40 World Mayors Summit. The icons include sketches of a bank note, a bike, a megaphone, a city and a symbol to represent community.
© C40

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Sources:
1. Oxford Economics, C40 modelling and World Bank GDP data (2020)

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