Greensburg, Kansas: self sufficient, quite efficient

The climate talks in Copenhagen will finish later today, with last minute appeals from major world leaders, including President Barack Obama. Obama has singled out one American town for praise regarding the work they have done in becoming more energy efficient and self sufficient. Bob Dixon is the mayor of that small Kansas town, Greensburg, which was ravaged by a tornado in 2007 and rebuilt itself as a green town. Matt Dellinger is a journalist who specializes in urban planning and believes that focusing overmuch on Greensburg as a model could be a mistake.