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Why oil and marshes don't mix

Gulf Oil Spill

As oil nears coast, some experts say the Gulf's marshland is particularly vulnerable.

Jessica Marshall, from Discovery News, reports on why oil and marshes don't mix:

In this case, marshes along the coast are most threatened by the oil's arrival. Oil that settles on the surface of sandy beaches and can be bulldozed away. Oil-coated rocks can be removed.

"If the oil gets into the marsh, that's a totally different scenario. That's much more difficult to deal with," Kinner said. "Unfortunately, most of the area where that oil is going is to these marshes."

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