Check out the graph below which plots city density against transport related energy use. As we transition to a resource constrained world, is there any question where we need to head on this curve?
Here’s another vote for walkable cities. Beyond the obvious health benefits, the following infographic, from the folks at National Building Museum, makes a compelling argument for the positive financial impact, to a local economy, of not buying so many cars. No, you aren’t likely to pocket all the savings, but they are much more likely to recycle through your community.