Unformatted text preview: art (McDonough and Braungart 2002) encourage
businesses to use sustainable design to make products that will enhance economic, environmental, and social
health. Products should be biodegradable, so that at the end of their life cycles they will become food instead of
waste. Microorganisms can convert waste into the valuable resource soil and save landfill space. This is true
5 1/20/2011 The Sustainability Revolution
John C. Ayers
recycling, not simply “downcycling” where we recycle the product into a degraded form. The Cradle to Cradle
(C2C) approach also advocates that we design human industrial systems to mimic natural cycles in which
nutrients (resources or materials) safely circulate in closed loops.
The three components of sustainability (Figure 3) are Social, Economic, and Environmental (or the
equivalent three P's: People, Prosperity, and the Planet). A more accurate figure makes clear that in fact the
economy is a subset of society, which is a subset of the environment (Figure 4). We cannot have a hea...
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- Fall '14
- John C. Ayers