C40 Co-Chair Mayor Aki-Sawyerr champions International Energy Agency’s call for a clean energy transition
C40 Co-Chair and Mayor of Freetown, Yvonne Aki-Sawyerr, has welcomed the International Energy Agency’s (IEA) call for a people-centred clean…
C40 and Climate Mayors highlight EPA’s US$7 billion fund to expand local solar investment
On Earth Day, Climate Mayors and C40 Cities celebrate the Environmental Protection Agency award of another US$7 billion from the…
Curitiba: From landfill to solar revolution
In March 2023, Curitiba officially launched its Solar Pyramid, a landmark project representing the first solar plant to be built…
C40 mayors and EU leaders meet to address energy and climate crises
European mayors met with EU decision-makers to discuss opportunities to harness the power of cities to confront the energy and…
Building the Future
The C40 Building Energy 2020 (BE2020) Programme will help more than 50 global cities take action to address a significant…
Making our iconic city skylines better for the planet
Through C40’s Private Building Efficiency Network, cities work together to improve the energy efficiency of existing commercial and residential buildings.…