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In Focus

In Focus

September 24, 2025

Climate Week NYC: Science demands action

Cities and national governments working together On the third day of Climate Week NYC, mayors and leaders attended the UN...
In Focus

September 23, 2025

Climate Week NYC: Climate finance, disinformation and resilient cities

On the second day of Climate Week NYC, mayors from around the world continued to show the bold progress being...
In Focus

September 22, 2025

Climate Week NYC: City mayors lead with action

Climate Week NYC kicked off today with a clear message: cities are on the frontlines, leading the way on climate...
In Focus

September 15, 2025

What happened at Urban 20 in Johannesburg? 

From Johannesburg to the world, here’s how cities drove the U20 agenda.   The Urban 20 (U20) Summit concluded on...
In Focus

September 10, 2025

Celebrating the winners of the fourth Students Reinventing Cities competition

C40’s global design challenge, Students Reinventing Cities, celebrates the winning projects from this year’s 11 participating cities: Amman, Barcelona, Freetown,...
In Focus

July 18, 2025

The City of Johannesburg takes a stand for clean air

On 28 June, the City of Johannesburg and Breathe Cities hosted the Pause and Breathe campaign, featuring the flagship ‘Hike...

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