C40 Cities is a global network of nearly 100 mayors of the world's leading cities that are united in action to confront the climate crisis.

C40 is a global network of nearly 100 mayors of the world's leading cities that are united in action to confront the climate crisis. Mayors of C40 cities are ...

1.5°C Climate Action Plans · Scaling Up Climate Action · Locations & Policies

Around the world, C40 mayors and the cities they lead are taking ambitious, collaborative and urgent climate action that aligns with science-backed targets.

London, United Kingdom · Toronto, Canada · Montréal, Canada · Nairobi, Kenya

C40's research demonstrates the power of city climate action in delivering transformative health, economic and emission reduction benefits for all.

This Agenda sets out C40 mayors' collective vision for a green and just recovery from the COVID-19 pandemic, and the shared principles and ambitious actions ...

ActNow is the United Nations' global call to individual action on climate change. The campaign is a critical part of the UN's coordinated effort to raise ...

Climate Action Superheroes · Actions for a healthy planet · Actions for a just society

The Future We Don't Want is a collaborative project aimed at understanding challenges that cities are facing due to climate breakdown.

C40 staff are dedicated, collaborative people from around the world who are committed to tackling the climate crisis and building a ...