C40: 2021 in focus

A round-up of the key activities and achievements of C40 Cities in 2021.

31 mayors introduce even more trees, parks and green space in cities to save lives and tackle the climate crisis

31 of the world’s great cities will be significantly greener in the years ahead, as leading mayors have committed to further expand, restore and protect urban parks, trees, gardens, ponds, and lakes within their cities. These investments in nature will speed up existing efforts to make communities healthier, improve air quality and help protect cities from the increasingly severe impacts of the climate crisis, such as extreme heat, flooding and drought.