'Green' thumbs up, down


Pittsburgh Post-Gazette
July 22, 2008 - Some of the plastic even smells like kettle corn. Grengross said when a plastic cup, made from traditional petroleum-based plastic, is tossed into a landfill it's inert. Grengross said, if, as a nation, we switched entirely to corn-based plastic, it would take 25 million acres of corn.


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