Plants poised to take over...

Here is one word about an up-and-coming innovation in plastics: cornfields.

Bioplastics -- most of which are now made from corn -- are poised to grab a bigger share of the plastics market as concerns about the environment and U.S. dependence on foreign oil promote alternatives to products made from petrochemicals.

They already are showing up in a variety of products, such as plastic gift cards, food containers and cellphone casings, says Steve Davies, a spokesman for NatureWorks.

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