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"When I wrote about industrial agriculture exploring sustainability, commenter Ruben suggested that the idea of something being \"more sustainable\" was illogical. Citing Bill Rees, the inventor of"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/sustainability-is-not-black-or-white-more-sustainable-is-possible.html>