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U.S. - launches satellite survey to measure extent of California's San Joaquin Valley sinking |
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Written by Administrator
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Tuesday, 15 September 2009 08:35 |
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Scientists suspect that parts of the San Joaquin Valley have started to sink again after years of stability, a troubling development that geologists say can be traced to increased pumping of groundwater. .... latimes.com |
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Last Updated on Tuesday, 15 September 2009 10:07 |
