Less violence occurs in urban public housing where there are trees, according to a study by University of Illinois researchers Bill Sullivan and Frances Kuo. Compared with apartment buildings that had little or no vegetation, buildings with high levels of greenery had 52 percent fewer total crimes, including 48 percent fewer property crimes and 56 percent fewer violent crimes. Even modest amounts of greenery were associated with lower crime rates. Researchers found fewer reports of physical violence in homes that had trees outside their buildings. In addition, people living near trees reported feeling safer than those living in more stark surroundings. Trees have the potential to reduce social service budgets, decrease police calls for domestic violence, and strengthen urban communities. See the study by clicking here.