In Washington recently, Secretary of the Interior Dirk Kempthorne made an announcement that clears the way for a new and largely untapped renewable energy resource — the oceans.

He announced regulations that would "guide the use of wind, wave and current resources on the 1.8 billion acres of Outer Continental Shelf on the coasts of the Atlantic, Pacific and Gulf Coast."

In South Florida, researchers are already working to harness the power of one of the ocean's most energy-dense currents — the Gulf Stream.

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