In this photo taken Wednesday, July 21, 2010, and released by Greenpeace on July 22, 2010, an employee scoops up dead snails at the Guotai Water Products Farm, less than a mile away from the site of the oil spill at Xingang Port in Dalian in northeast China's Liaoning province. China National Petroleum Corp. said Thursday a vital pipeline has resumed operations after an explosion caused the country's largest reported oil spill. Cleanup efforts, marred by the drowning death of a worker, continued over 165 square mile stretch of water blanketed in thick, dark oil Thursday, after an official warned the spill posed a severe threat to sea life and water quality. (AP Photo/Greenpeace, Jiang He)
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