CNN revisits Florida shores six months after the Gulf oil spill began to discover that crude from BP's offshore well remains buried beneath the sand.
Dr. Richard Snyder, a biologist from the University of West Florida, is leading a team that continues taking samples to search out the lingering signs of oil, whether contaminating tiny sea life or hidden in layers deep under the coastline. "It just isn't going to go away over night. Six months and we've still got it," he tells CNN.
A combination of a snow blower and farming sifter called the 'Sand Shark' is on hand to help clean the tar, but the machine only goes to a depth of six inches, and CNN shows that a layer of oil remains deep below that. Some conservationists argue that using that heavy machinery to dig deeper may do more harm to the environment than good, according to CNN.
More:Gulf Oil Spill
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