Challenge The Cordero Rojo Mine, operated by Rio Tinto Energy America (RTEA), produces millions of tons of coal per year. In active work areas, all employees are required to wear safety glasses. To promote their use, the mine at first simply stocked the glasses on a shelf, readily accessible to everyone at the site. With a new pair always available, however, employees saw little need to use their safety glasses more than once. Contractors also

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