An End to Waste?

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Science  10 Aug 2012:
Vol. 337, Issue 6095, pp. 623
DOI: 10.1126/science.1227092

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Even though waste is an inevitable accompaniment to all processes, contemplating an end to waste can force us to think about how we define, generate, and manage it. Two common definitions of waste are a substance or object that is discarded and the avoidable loss of a resource. The current waste management practices in industrialized countries are widely recognized to be unsustainable, yet it is clear that we are not changing our practices effectively or fast enough. What are the impediments and how can we overcome them?