GRAND ISLE, La. -- Dr. Ed Owens, a geologist for Polaris Applied Sciences, explains surf washing in Grand Isle State Park, Aug. 23, 2010. Surf washing is an oil spill cleanup technique being tested to confirm that natural surf and tides may offer an environmentally sound solution to restoring beaches affected by the Deepwater Horizon incident. U.S. Coast Guard photo by Petty Officer 3rd Class Erik Swanson.
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