After Disaster, Residents Rebuild Green

In the aftermath of Hurricane Katrina, which tore through New Orleans on Aug. 28, 2005, architects and city planners had an opportunity to rebuild a major U.S. city in a thoughtful, sustainable way.

But more than four years later, New Orleans is still struggling with the nation's highest rates of murder and child homelessness – problems that make the much-publicized new eco-homes by Brad Pitt's Katrina relief organization, Make It Right, seem like superficial achievements.

Greensburg, however, a town of 1,400 in rural Kansas, may give you hope: