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FLAGSTAFF, Ariz. (AP) - A leader of an environmental group has been named to a post overseeing scientific research at Grand Canyon National Park.
Martha Hahn, who was associate director at the Grand Canyon Trust, will oversee 55 employees who conduct research and make management recommendations at the Grand Canyon.
Hahn is calling for more proposals to conserve energy, trim carbon emissions, conserve water and do more scientific sampling beyond the banks of the Colorado River.
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