Reuters: The Arctic Circle holds an estimated 90 billion barrels of recoverable oil, enough supply to meet current world demand for almost three years, the U.S. Geological Survey forecast on Wednesday. The agency’s forecast comes as Russia is competing with Canada, Denmark, Norway and the United States to grab a chunk of the Arctic’s huge energy resources as the area becomes more accessible due to global warming that is melting the region’s ice. The government agency also said the area …