<http://schema.org/alternativeHeadline>
"The Arctic Circle has an estimated 90 billion barrels of undiscovered, technically recoverable oil, as well as 1,670 trillion cubic feet of gas and 44 million barrels of natural gas liquids, according to a report released by the US Geological Survey."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.france24.com/en/20080724-arctic-vast-oil-reserves-energy-environment-gas-study-usgs-billion-barrels>