How do you get a city to lose weight?

".......we've been able to document that more suburban, less walkable parts of the world are the ones that rank the highest for weight. There's a new term for these places: obesogenic. As we've designed our country around the assumption of universal car ownership and use, we've created a landscape in which walking is no longer serving any purpose."

Great article at The Guardian about obesity, walkability and Oklahoma City's move forward to a healthier and thinner city.