Diane Cook speaks to Joe Anderson, an arborist in Portland Maine. Anderson discusses trees, the work that an arborist performs, and things on his mind while he works.

With nearly 20,000 individual trees in the city of Portland, one man and his small crew are in charge of the upkeep and maintenace of those trees. Cory Valentine highlights the work of Jeff Tarling, the city arborist in Portland, and discusses his desire to do more for the city.