Demand for liquefied natural gas set to double by 2040, according to Shell

• Worldwide demand for liquefied natural gas, or LNG, rose by 12.5% last year, according to Shell. 
• Citing forecasts, the energy giant says LNG demand is expected to double by 2040 to 700 million tons.

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Worldwide demand for liquefied natural gas, or LNG, rose by 12.5% to hit 359 million tons last year, according to