Tornado-flattened Kansas town is coming back greener

A year after it was practically wiped off the map by a tornado, Greensburg is rising again -- and going green, too, with solar panels, wind turbines, tinted windows, water-saving toilets and other energy-efficient technology.

Environmentalists and civic leaders have seized on the disaster as a once-in-a-lifetime opportunity to re-engineer the town.

"I would never say the tornado happening was a good thing. I would never wish that on anybody ... But given the opportunity, we have to do it right -- to make it better." - Kim Alderfer, assistant city manager