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April 28, 2017

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Mckenzie Peterson, right, of Desert Research Institute's GreenPower, talks with children of teachers during MGM Resorts annual Educator Appreciation Day at the Mirage Thursday Aug. 14, 2014.

Steve Marcus

Mckenzie Peterson, right, of Desert Research Institute's GreenPower, talks with children of teachers during MGM Resorts annual Educator Appreciation Day at the Mirage Thursday Aug. 14, 2014.