In the carbon dioxide method, groups of five or six pigs are loaded into an elevator and then lowered into a chamber containing the gas.

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However, the shale rock containing natural gas is separated from underground water aquifers by impermeable layers of rock that do not allow any hydraulic fracturing fluids to migrate into underground water aquifers.

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At the time, Lebanon did not claim the areas in which Israel has discovered natural gas deposits or the areas abutting those areas, which are suspected of similarly containing large natural gas deposits.

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The Marcellus is the biggest natural gas field in the United States, containing more than 500 trillion cubic feet of recoverable gas and stretching across three states.

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Some hours north of where I am on a trip with BACKROADS, a travel company based in Berkeley, California, sits the vast and controversial Canadian tar sands containing vast amounts of oil and natural gas, which are some day going to be sent through an 1800 mile pipeline to the Louisiana Gulf Coast that the US State Department has just approved.

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C. trailer park who claimed a nearby gas station owned by Conoco had leaked gasoline containing MTBE that contaminated their water supply.

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Cyprus announced the discovery of a field containing between 5 and 8 trillion cubic feet of natural gas under the Mediterranean Sea in 2011 but Turkey disputes its drilling rights.

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For instance, the ultra-thin layers of graphene (a two-dimensional form of graphite) are formed by injecting liquid solutions containing carbon and silicon into an extremely hot, ionised gas (plasma) of argon.

ECONOMIST: MONITOR