Since producing his radio documentary in 1994, Alan Weisman has maintained an avid interest in Gaviotas. He’s returned to the village several times in the past few years, and has just finished writing a book that updates the Gaviotas story. It’s called “Gaviotas: A Village to Reinvent the World,” and it’s published by the Chelsea Green Press. He spoke with Steve Curwood from station K-U-A-T in Tucson, Arizona.