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Fracking is essential for the production of natural gas and oil from shale formations, and with advances in fracking technology, it is becoming easier and more accessible to access natural gas.
Media captionThe BBC's David Shukman explains how fracking works. Drilling companies suggest trillions of cubic feet of shale gas may be recoverable from underneath parts of the UK through a process known as fracking. Hydraulic fracturing, or fracking, is a technique designed to recover gas and oil from shale rock.