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Photos: Green building goods get a home

July 31, 2007 5:32 PM PDT

These kitchen countertop swatches contain pieces of scrap metal. Other brands contain recycled glass, volcanic rock and mixtures of fly ash with recycled paper.

Many companies seek to go green by "upcycling," which describes turning garbage into products more valuable than the original material. For example, one company recycles polystyrene packing peanuts into decorative architectural moldings.

Photo by Elsa Wenzel/CNET Networks

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