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In Focus

In Focus

July 2, 2025

A look back at London Climate Action Week 2025

Turning climate ambition into reality Across the world, cities and their mayors are driving climate solutions forward. At a time...
In Focus

June 24, 2025

20 Years of C40 Cities: Local Leadership Driving Global Climate Action

From London in 2005 to 97 of the world’s largest cities in 2025, C40 Cities marks two decades of unwavering...
In Focus

June 19, 2025

Urban 20 in Review: Lessons for the road ahead

Co-chaired by Tshwane and Johannesburg, the Urban 20 (U20) Sherpa Meeting brought city leaders together to advance bold climate action.
In Focus

June 3, 2025

Empowering social housing tenants in Oslo

In the face of the Oslo housing crisis, tenants and councils are working together to reshape social housing that is…
In Focus

May 29, 2025

Madrid: Taking clean construction action – lessons from C40’s VISIBLE project

C40 Cities gathered stakeholders in Madrid as part of the VISIBLE project, empowering European cities to green their construction sectors.
In Focus

May 28, 2025

C40 2024 Annual Report: How cities are building fairer, safer and greener communities

C40's 2024 annual report is here. Read the foreword written by co-chairs Mayor of London Sadiq Khan and Mayor of…

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C40 Cities

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