Monti killed that deal on a theory called conglomeratization: By buying a maker of machinery that produces rival plastic bottles, Tetra Laval could in a few years leverage its lead position in cartons to also control plastic alternatives (glass bottles and tin cans are the packaging products still out of Tetra Laval's reach).

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Plastic Logic's mission is to lead a revolution in the way people acquire, organize and consume information.

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They warned the plastic stones could easily fall off and form clumps which could lead to choking if swallowed.

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David Dunaway, from the plastic surgery and craniofacial unit at Great Ormond Street, was the lead clinician and is also a trustee of Facing the World.

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Across Britain her initiative has struck a chord, and now over 80 other towns have followed her lead and introduced their own schemes to cut down on plastic bags.

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San Francisco-based Method already uses 100% post-consumer plastic in all its bottles, but has struggled to get other companies to follow its lead.

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