RIA Novosti: Russian Deputy Prime Minister Sergei Ivanov said Wednesday that he is concerned that global warming is opening up the Northern Sea Route for the uncontrolled movement of foreign ships. Many Arctic specialists agree that global warming is causing ice to retreat around the outer edges of sea ice drifting on the Arctic Ocean which is opening up previously closed maritime routes like Russia’s Northeast Sea Route and Canada’s Northwest Passage. “I ask you once again to pay special …