C40 is a network of the world’s megacities committed to
addressing climate change. C40 supports cities to collaborate
effectively, share knowledge and drive meaningful, measurable
and sustainable action on climate change.
Photo: Kois Miah
Cities are where the future happens first. The C40 Cities Climate Leadership Group, now in its 10th year, connects more than 75 of the world’s greatest cities, representing 550+ million people and one quarter of the global economy.
Created and led by cities, C40 is focused on tackling climate change and driving urban action that reduces greenhouse gas emissions and climate risks, while increasing the health, wellbeing and economic opportunities of urban citizens.