The Center for Zero Waste Design recognizes that waste is a design flaw: in packaging, products, buildings and cities. Ecosystems recycle materials indefinitely in circular loops, but the human-designed system trashes over 90% of the materials extracted from the earth within six months.  The Center for Zero Waste Design was founded in 2019 by the authors of the Zero Waste Design Guidelines. These Guidelines address the crucial role that the design of our buildings and city play in achieving circular material loops. They contain practical design strategies and case studies to achieve zero waste in buildings and cities.