Innovation needed to deal with a world with 7 billion people

Engineers -- by using creative problem-solving techniques -- make "our lives easier, healthier, safer, more comfortable and fun," writes David Harrell of Tennessee-based Vaughn & Melton Consulting Engineers. "Engineers are problem-solvers. Their knowledge, skills and creativity will be crucial in meeting the future needs of a world filled with 7 billion and counting," he argues.

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Knoxville News-Sentinel (Tenn.) (free registration), The

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