Regarding definitions of sustainability, I offer the keynote address I gave at the 2004 Colorado TWS meeting on sustainability rhetoric:
http://steadystate.org/Resources.html Click on the 3rd slideshow entitled "Economic Development, Economic Growth, and Environmental Protection: A Crucial Role for Biologists in Technical and Rhetorical Clarification." It should only take a minute to download. Be sure to turn speakers on to hear the pig grunts vs. owl hoots toward the end (all associated with rhetoric vs. otherwise, respectively). As for books on this subject, I highly recommend Sharon Beder's Global Spin and Simon Dresner's Principles of Sustainability. Both do an excellent job of tracing what's been said to who's said it (or who has funded the saying). Cheers, Brian Czech, President Center for the Advancement of the Steady State Economy WWW.STEADYSTATE.ORG Sign the position on economic growth at: http://steadystate.org/PositiononEG.html
