I stumbled across this article today called Nature Makes Us More Caring. It was a scientific study conducted at Rochester University that compared people's reactions to synthetic versus natural environments. The results show that higher interaction with nature makes people feel better and it makes them act better! In this study, participants with more exposure to natural environments "value community and close relationships" and are "more generous with money".
So it looks like all we have to do to abolish greed and make people happier is plant some gardens, right?? Welllll.... maybe not quite... but this is further evidence that urban greenery has side effects OTHER than edible results.