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National Public Radio: The rise of fracking as a method for extracting natural gas from shale rock has triggered demand for a key ingredient in the process: silica sand. In parts of the upper Midwest, there's been a rush to mine this increasingly valuable product.
In northeast Iowa, a mine recently reopened to profit from the new demand. It's owned by the Pattison family, who have run a grain business for decades. They had been storing the grain in the old, unused mine tunnels carved into the cliffs and then loading......
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Gas Extraction Creates A Boom For Sand
Posted by National Public Radio: Kathleen Masterson on August 3rd, 2011
Posted in Water Conservation