Greensburg was named after a stage coach driver, D.R. "Cannonball” Green. Soon after the tornado, the city decided to add a second meaning to its name by rebuilding to be environmentally green.

The idea was born partially born out of necessity. The tornado wiped the slate clean and destroyed 95 percent of the buildings. Since everyone had to rebuild, why not go green?

The electric generating windmills are seen as a throwback to the area's pioneering ancestors, who took advantage of the wind, solar, and geothermal energy.

Greensburg's mayor Bob Dixson says, "It was a community effort to what could we do to just build smarter."

The town's schools incorporated green technology into the new buildings, including natural lighting.

Principal Staci Derstein says it saves on electricity, though there are lights, if needed.

Other buildings rely on windmills to generate electricity. And when it rains, the water is captured with a series of downspouts and gutters to direct the water into large cisterns for use later. That water is used irrigate school plants, which reduces the amount of municipal water.

All of this recycling and reusing works its way into classroom lessons, so future generations learn about sustainable lifestyles.