Green Peace

A recent scientific study is stating that in urban areas where the presence of "greenspaces" (like parks, playgrounds, fields, etc) is lacking; there are more cases of violent crimes, poverty, and a overall "bad mood" of the people living in these areas. These experts say that with more "greenspaces" available, statistics like crime and vandalism will decrease. What do you think? Do you think planting trees around neighborhoods in Boston can help, or hurt?