April 04, 2013
"[Our] results indicate that vegetation abundance is significantly associated with lower rates of assault, robbery, and burglary, but not theft," the researchers, Mary Wolfe and Jeremy Mennis, write in their study.
The scientists hypothesize that the decline in violent crime may be due to greener areas of the city having more people outside and greater community involvement. A second hypothesis is that green areas also alleviate psychological stress, making violent crime less likely. Recent research has found that human beings experience significant psychological benefits simply from spending time in natural spaces.
"This research has implications for urban planning policy, especially as cities are moving towards 'green' growth plans and must look to incorporate sustainable methods of crime prevention into city planning," the researchers note.
CITATION: Mary K. Wolfe and Jeremy Mennis. Does vegetation encourage or suppress urban crime? Evidence from Philadelphia, PA. Landscape and Urban Planning. Volume 108, Issues 2–4, November–December 2012.
Presence of trees may mitigate cardiovascular and respiratory disease
(01/17/2013) Scientists with the U.S. Forest Service have observed a link between human health and trees, implying that trees may actually mitigate both cardiovascular and lower respiratory disease. Although the researchers do not yet put forward a reason why or how the presence of trees save lives, they are convinced there is a link.
What does Nature give us? A special Earth Day article
(04/22/2011) There is no question that Earth has been a giving planet. Everything humans have needed to survive, and thrive, was provided by the natural world around us: food, water, medicine, materials for shelter, and even natural cycles such as climate and nutrients. Scientists have come to term such gifts 'ecosystem services', however the recognition of such services goes back thousands of years, and perhaps even farther if one accepts the caves paintings at Lascaux as evidence. Yet we have so disconnected ourselves from the natural world that it is easy—and often convenient—to forget that nature remains as giving as ever, even as it vanishes bit-by-bit. The rise of technology and industry may have distanced us superficially from nature, but it has not changed our reliance on the natural world: most of what we use and consume on a daily basis remains the product of multitudes of interactions within nature, and many of those interactions are imperiled. Beyond such physical goods, the natural world provides less tangible, but just as important, gifts in terms of beauty, art, and spirituality.