The Power of Greening: Philadelphia, Pennsylvania
With an alarming amount of vacant lots present within their city, the Pennsylvania Horticultural Society (PHS), along with other community and municipal partners, have developed a program to clean, green, and maintain these vacant lots in order to improve their community and health. In order to provide evidence that improvement of these vacant lots has positive effects on the community and health, PHS began a 10-year long longitudinal study comparing vacant lots against treated lots.