Where a city appears on the Green Cities Index is a complicated business and relies on a great many different sets of data. On the one hand, that is a good thing - it is what makes the index robust, covering as it does multiple environmental concerns. However, it also means that cities that are performing well on some metrics but not on others can find themselves in the lower rankings, despite doing important and often innovative work. Here we highlight four individual projects that we feel deserve a mention.
