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WATCH THE LIVESTREAM: “Our Last, Big Chance” at COP26

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Thought Leadership

Thought Leadership

November 30, 2023

“We cannot end the era of fossil fuels without working together” – C40 Co-Chairs address Heads of State ahead of COP28

By C40 Cities Co-Chairs Yvonne Aki-Sawyerr, Mayor of Freetown and Sadiq Khan, Mayor of London Dear Heads of State, We...
Thought Leadership

October 27, 2023

How cross-sector partnerships can play a role in catalysing action under the Inflation Reduction Act

As the US federal government’s most significant action ever on clean energy and climate mitigation, the Inflation Reduction Act opens...
Thought Leadership

September 7, 2023

‘Letter to Air’ by Mayor of Durban, Mxolisi Kaunda

C40's first African Mayoral Champion for Air Quality, Mayor of Durban, Mxolisi Kaunda penned a 'Letter to Air' to mark…
Thought Leadership

June 30, 2023

How youth activists and cities can work together on climate

C40 Executive Director Mark Watts on the importance of youth perspectives and involvement in climate action.
Thought Leadership

February 7, 2023

It’s time to rapidly scale up finance for climate adaptation in cities

C40 Executive Director Mark Watts reflects on the need for adaptation financing to be rapidly scaled up, and much more…
Thought Leadership

December 14, 2022

2023 must be the year we act decisively on fossil fuels

By C40 Executive Director Mark Watts It is hard to believe that COP26 was only a year ago. Since that...

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