I thought the readings and lecture on urban trees was really interesting. I have always wondered how the trees lived in the little holes, and apperently the answer is "not very well". Most people don't realize that it is really difficult for the trees to grow in such a confined space. The solution, the soil developed at Cornell, doesn't seem very expensive and should be more widly used in places that want trees growing in the sidewalk or streets or other paved places. Most people in urban areas don't conciously appreciate the sidewalk trees, but there is most likely a subconcious affection for seeing nature in places where there is a lot of concrete and buildings. there should be more of an effort to plant trees and to help them grow as best they can.