I like this Wired article about Urban Living being better for the environment than Suburban Living.  One of the reasons I love urban cities is the sense of community around resources such as transportation.  From a more sociological perspective, this notion potentially reinforces the sociality of human nature.  (I mean… the more fit places will survive and flourish… no?)

http://www.wired.com/science/planetearth/magazine/16-06/ff_heresies_01cities

anita