The US Geological Survey estimated in 2008 that the Arctic was likely to hold 30% of the world's recoverable, but yet to be discovered, gas and 13% of its oil.

美国地质调查局曾在2008年做出预测，北极很可能占有全球30%和13%可采而未被发现的石油和天然气。

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The Arctic holds one-fifth of the world’s undiscovered, recoverable oil and natural gas, the United States Geological Survey estimates.

美国地质调查局估计，北极拥有五分之一全世界未被发现的，可开采的石油和天然气。

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And much of the CO2 that causes this problem derives from oil and gas made less scarce by the reserves now recoverable from below it.

引起这个问题的大部分二氧化碳是从石油和天然气中产生的，而从海底重新得到的能源储备也是的它们不再那么稀缺了。

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Because of the marriage of hydrofracking and horizontal drilling, the world is now awash in unconventional, but recoverable oil and gas.

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The US Geological Survey estimates that the Arctic has around a quarter of the world's undiscovered and recoverable oil and gas reserves.

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But in 2008 the U.S. Geological Survey announced to great fanfare that the formation likely held 4.3 billion barrels of recoverable oil and gas equivalents.

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