That is not their debt to pay. McDonough Braungart Design Chemistry has developed and trademarked certain unique terms to describe their product and systems design protocols. All rights reserved. During the process of redesign, the index continuously tracks and monitors the progress of improvement. It returns to the industrial life cycle after its useful life.
Organic nutrients are usually carbon-based compounds.
Unmarketables are products that cannot be consumed or used in either an organic or industrial metabolism. Safe means of recycling these materials may be currently unavailable due to lack of demand and high cost. In the long-term, these products should not be manufactured. As existing unmarketables are discarded, they should be stored and prevented from contaminating the surrounding environment until a safe recycling process is developed.