Local action, global influence

With global support and the right foundations in place, cities can go further and faster. Mobilising the people, partnerships, and finance needed to turn plans into reality.

Cities have a unique position in global climate action. They’re where most people live, where most emissions are produced, and where solutions take shape. 

C40 helps mayors use that position. When a mayor speaks at a global forum, they’re reporting on what’s already working in the likes of their streets, buildings, and transport systems, and proving that climate action delivers real benefits for communities. 

Cities can:

  • form powerful coalitions across borders, uniting behind shared goals
  • represent vast populations and economies, giving their voices real weight
  • ensure global decisions reflect local realities

Explore how cities are influencing the global agenda

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