Zero Water

 In the '80's and '90's, some businesses began to adopt an ethic of 'zero discharge'--this was especially true for manufacturing processes that had previously been treating wastes from their core activity as 'externalities.'  at first viewed by many as an impossibility, it nonetheless established a goal towards which to work.  But after a few years of diligence, many companies established new resource recovery streams from their wastes, and today 'zero discharge' is for many a reality.