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COP30

In Focus

March 8, 2025

International Women’s Day – Accelerating climate action

From leading the way as the first female mayors of their cities to playing key roles in reforming climate policy,…
In Focus

November 18, 2024

What happened at the U20 Summit in Rio?

What demands do mayors have for national leaders at the G20 Summit and COP29, following a successful U20?
Press Release

June 24, 2024

C40 joins Mission 2025, urges national governments to align climate plans with 1.5°C ahead of UN deadline

A coalition of real economy leaders called "Mission 2025" has launched a campaign urging governments to align their upcoming national…
In Focus

June 19, 2024

São Paulo and Rio de Janeiro gather global cities to influence G20 at Urban 20 Summit of Mayors

Representatives from over 30 cities convened in Brazil for the Urban 20 (U20) 2024 Mayors’ Summit in São Paulo earlier…
C40 Cities

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