
ong a cause célèbre of the eco crowd, sustainable business practices are yielding big savings at companies like PepsiCo and Wal-Mart
At PepsiCo's (PEP) Walkers potato chip plant in Leicester, England, steam from the fryers rises through exhaust stacks into the open sky. From his office window, Martyn Seal, the company's European director of sustainability, watches the wispy clouds and sees nothing but lost resources and wasted cash. To change all that, Seal and his team are working to develop a manufacturing process that will allow them to suck water out of potatoes and even unplug the plant from the public water system.
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