National

May 24, 2011 4:03 PM

As ice melts and technology improves, interest in Arctic grows

Nations with interests in the Arctic region — including the United States — are beginning to stake their claims on the resource-rich region. Although numerous logistical challenges to oil and gas exploration in the region remain, the U.S. Geological Survey estimates that as much of a third of the world's undiscovered gas and 13 percent of its undiscovered oil may be in the offshore Arctic, in relatively shallow water.

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