The second edition of this groundbreaking report provides a detailed look at the leadership of cities and municipalities around the world on tackling climate change, and at all the various ways in which cities are increasing the share of renewable energy. Backed up with better data, and a broader team of researchers and writers from all corners of the world, the report expands on the foundations provided by the 2019 edition to add a flurry of new graphs, figures, and visuals to provide a more nuanced global picture of the development of renewables in cities.