why did you get the greenest city? > i think it's in part because of a series of decisions that have been made over decades in terms of how relive, we work, we play. it comes down to how we design the city. the efficiency, the public transit system which is one of the heaviest traveled systems in the u.s. particularly for a city oh of our size. we try to put work, school, close together . >> rochester, new york, historically an industrial place, and greensboro, north carolina, you talked about decisions made some time ago. you've been on that counse council in years gone by and you've been an an advocate for some time what contributes to this? >> i think that in some way we've created a culture. long term residents, there is a commitment in each individual household to make some sort of contribution. it shows up when we get together to discuss the design of a building. it's a question of sustainability. let me backtrack, it's one of the big things these days is mixed use. no one is going to be like new york city, and le