U.S. Icebreaker to Map Arctic Sea Floor

(AP) -- A U.S. Coast Guard icebreaker is headed to the Arctic to map the sea floor off Alaska, as Russia, Denmark and Canada assert their claims in the polar region, which has potential oil and gas reserves.

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<p><a href="http://www.physorg.com/news106018859.html">U.S. Icebreaker to Map Arctic Sea Floor</a></p> <p>(AP) -- A U.S. Coast Guard icebreaker is headed to the Arctic to map the sea floor off Alaska, as Russia, Denmark and Canada assert their claims in the polar region, which has potential oil and gas reserves.</p>