Cities around the world are making commitments to reduce their net carbon emissions to zero. But what are the steps being taken to ensure this goal is achieved, and who is leading the race towards a greener urban future?

Tall Stories 515: Escaping the urban jungle on Mumbai’s Malabar Hill Forest Trail
07:32

How greenery improves our quality of life
35:51

Tall Stories 514: The strange world of Zürich’s Bruno Weber Park
05:10