Liquified natural gas will increasingly be used for long-haul truck, train and ship propulsion.

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This should include our liquified natural gas terminals, major commercial ports and facilities.

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There were also environmental objections to two liquified natural gas terminals in Pembrokeshire, which were recently given the go ahead.

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Domestic natural gas prices will rise only slightly if the U.S. exports liquified natural gas, although there could be geopolitical repercussions, analysts from Deloitte said Wednesday.

FORBES: LNG Exports Would Have Minimal Impact on U.S. Prices: Deloitte

One frequent question deals with Compressed Natural Gas or Liquified Natural Gas vehicles (Natural Gas Vehicles or NGV) in comparison with tri-Flex Fuel vehicles ( Gasoline, Ethanol, Methanol) vehicles.

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Far from becoming a vast new source of baseload electricity fuel or even exports as liquified natural gas, a lot of the shale gas will essentially serve as a reserve in times of shortage, he said.

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The U.S. is at last moving in that direction, with the Department of Energy in recent weeks approving the proposal by Cheniere Energy to turn its little-used liquified natural gas import terminal at Sabine Pass on the Louisiana coast into an export terminal.

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Natural gas loses some of its carbon advantage over coal when liquified because liquification and refrigeration require energy usually furnished by burning some of the product and LNG is held under such enormous pressures in transport sometimes leaks, contributing a potent greenhouse gas to the atmosphere.

FORBES: LNG Exports Would Have Minimal Impact on U.S. Prices: Deloitte