Trees reduce the number of crime cases

The greater the density of plants in urban areas, the lower the number of robberies, assault and intrusion into private houses.

Tree line on a street in Berlin, Germany.

Mary Wolfe, an environmental researcher at Temple University in the United States, and Jeremy Mennis, a professor of geography and urbanism, decided to study the impact of plants on crime rates in cities.They used satellite images to assess the density of trees, shrubs and lawns in each area of ​​Philadelphia, Pennsylvania, USA.They then looked at the number of crimes in each area according to police statistics, Discovery reported.

The results show that the number of robberies, human attacks, and illegal intrusion in areas with a lot of trees is lower than in areas with few trees.

"We think that the dense presence of trees increases the level of social interaction and pride of people in public places. Green trees also create special psychological effects, helping children. people better control and reduce offense , "the two researchers commented.

A similar study, conducted by a group of other experts and published last year, shows: If the number of trees in the city increased by 10%, the number of crime cases decreased by about 12%.