FILE - This Feb. 23, 2011 file photo shows a tour boat as it passes near the snout of Spegazzini Glacier in Los Glaciares National Park in Argentina. Argentina’s Supreme Court has upheld the country’s glacier protection law, rejecting an effort by mining giant Barrick Gold Corp. to have it declared unconstitutional. Tuesday’s decision was praised by environmentalists and marked a setback for one of the world’s biggest gold miners. (AP Photo/Ian James, File)
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