>> reporter: mayor bob dixon says they became a laboratory for sustainable living, and a tourist attraction for the environmentally aware. >> do you want, wheat white or sourdough broad? >> reporter: kerri and her husband jim never imagined they would move back to greensburg or own a cafe but the fresh green start was a selling.. >> in the condition greensburg in was before the tornado we would not have made a decision. a coffee shop like this would not have survived just the way greensburg was. >> reporter: the success of greensburg prompted fema to call it a model and advice for survivors in folks in newly tornado-ravaged areas. >> be careful who you hire, how you pay them and make sure you get performance for your pay. >> reporter: a lot of lessons and wind ture prince which are -- turbines which are trophies of tenacity. >> the wind that blew us away, might be the wind that might be salvation of and growth of this city through alternative energies. >> reporter: now, jenna