In the course of architect Eden Brukman’s career, she has touched and shaped a number of critical aspects of the sustainable building industry. Today, she is the Senior Green Building Coordinator for the City of San Francisco. We talked to her about accountability, working at the city scale, decarbonization, material banks, and about why mentoring is so important. Eden touched on how systems thinking is so crucial to solving the big challenges; she cited the classic Donella Meadows essay, Leverage Points in a System, as an enduring reference point.