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" Costco is replacing some of its plastic packaging clamshells  with  Natralock , a new paperboard-based product made by MeadWestvaco. Natralock combines paperboard with a much smaller plastic bubble segment.  According to the promotional literature, a"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-architecture/costco-eliminating-bubble-packs-ups-recycling-potential-with-meadwestvacoatms-anatralocka.html>