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    US Secretary of State Hillary Rodham Clinton and Norway's Minister of Foreign Affairs Jonas Gahr Stoere, right, talk together onboard the Arctic Research vessel Helmer Hanssen on a fjord, near the northern Norwegian city of Tromso, Norway, Saturday June 2, 2012. Clinton is trekking north of the Arctic Circle, a region that could become a new international battleground for resources. (AP Photo/Saul Loeb, Pool)

    US Secretary of State Hillary Rodham Clinton and Norway's Minister of Foreign Affairs Jonas Gahr Stoere, right, talk together onboard the Arctic Research vessel Helmer Hanssen on a fjord, near the northern Norwegian city of Tromso, Norway, Saturday June 2, 2012. Clinton is trekking north of the Arctic Circle, a region that could become a new international battleground for resources. (AP Photo/Saul Loeb, Pool)

    Clinton Arctic visit

    US Secretary of State Hillary Clinton took a first hand look Saturday, June 2, at the way a warming climate is changing the Arctic, opening a once frozen region to competition for vast oil reserves.