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Associated Press
FILE - In this July 18, 2007 file photo, Canada's Prime Minister Stephen Harper, left, is shown a model of Barrick's Pascua Lama mining project by Barrick's Igor Gonzalez during a visit to the company's office in Santiago, Chile. A Chilean court’s halted on April 10, 2013 the construction of Barrick Gold Corp.’s $8 billion, border-straddling mine on the high-altitude spine of the Andes. Chile’s environmental and mining ministries are on record supporting the suspension, which is based on allegations that construction is kicking up dust that has settled on the nearby Toro 1, Toro 2 and Esperanza glaciers, hastening their retreat, and threatening the Estrecho river, which supplies water to the Diaguita tribe living downstream. (AP Photo/Ryan Remiorz, CP, File)

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