Vacant lots have always been a source of frustration for cities. The regular maintenance of vacant lots in urban cities such as Philadelphia can cost upwards of $20 million dollars. But what if there was a sustainable way for cities to manage these lots? Enter Ariel Ben-Amos, an urban city planner who has been working on a comprehensive study that examines how goats have been used to maintain growth in vacant spaces in other cities — and the possibility of their use in Philadelphia. For the first part of our episode, we spoke with Ariel about his study, his own experience with goats, his fascination with SEPTA and the blog he writes for, Urban Directions.

In the second part of the episode, we continue last week’s discussion with Jon and Erich about movies in 2010. This time, they tell us which movies in 2010 disappointed them the most. (And no, it wasn’t The Social Network.)