he came to greyton from the u.s.ust under two years ago, attracted by the new ideas in-- novel ideas put to use in the town. >> what we're really doing here with the trash to treasure festival, it's very much an initiative of the global transition town network. and we're showing people how they can use the great majority of everything they throw away on a daily basis to aid community resilience, to grow food, to insulate their homes. and a big part of this is the eco-brick, this simple technology of using a plastic bottle, stuffing your plastic trash into it and really sequestering that carbon that would otherwise be released into the environment.>> ♪ stuff your bottles clean up your town ♪ >> marshall rinquest and his country conquerers have composed a song about eco-bricks especially for the festival. it's meant as encouragement, because the challenges facing the community are huge. the transition town movement has awakened hopes of a better life among many poor people. the initiators now have to fulfill them. a be