Environment
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A crew plants trees above Houston's Buffalo Bayou beneath the downtown skyline Friday, April 18, 2014. The city is spending $58 million to improve the waterway and the surrounding parks and bike and jogging trails. (AP Photo/Pat Sullivan)
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FILE - This 2007 aerial file photo provided by United States Geological Survey, shows a view looking southeast along the surface trace of the San Andreas fault in the Carrizo Plain area of California. A study released Wednesday, May 14, 2014 by the journal Nature suggests excessive groundwater pumping for irrigation in California's agricultural belt can stress the San Andreas Fault, potentially creating future earthquakes. (AP Photo/U.S. Geological Survey, Scott Haefner)