perhaps this is a bit off the DNA topic but along the lines of sustainable development, Stewart Cowan (in association with Ecotrust) also developed a pattern language for a "conservation economy," see http://www.conservationeconomy.net/ They say,"On this site, fifty-seven patterns provide a framework for an ecologically restorative, socially just, and reliably prosperous society. They are adaptable to local ecosystems and cultures, yet universal in their applicability. Together they form what we call a Conservation Economy." Regards, Ann Ann Thorpe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dept of Design, Development, Environment & Materials Open University, Walton Hall, Milton Keynes, MK7 6AA, United Kingdom Bartlett School of Architecture, University College London Wates House, 22 Gordon Street London WC1H 0QB, United Kingdom [log in to unmask] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . book: The Designer's Atlas of Sustainability (www.designers-atlas.net) & blog: http://designactivism.net --------------------------------- The Open University is incorporated by Royal Charter (RC 000391), an exempt charity in England & Wales and a charity registered in Scotland (SC 038302).