View of promenade seating and edge buildings in Bo01. (Photograph by Joakim Lloyd Raboff.) View of promenade seating and edge buildings in Bo01. (Photograph by Joakim Lloyd Raboff.)

How do you scale sustainability practices up to the level of a neighborhood or town? That's the question Harrison Fraker tackles in The Hidden Potential of Sustainable Neighborhoods, in which he analyzes data from four European cities to determine what works and what doesn't. In this excerpt, he introduces his methods and takes the reader to Bo01 in Malmö, Sweden.