The government has announced that it will remove a temporary ban on hydraulic fracturing across the UK.
Fracking, as it is known, is a controversial technique for recovering gas and oil from shale rock. But how concerned should people be about the environmental impacts?
Hydraulic fracturing is widely used across the US to exploit reserves of oil and gas that were once believed to be inaccessible.
But in the UK, the use of fracking was halted in 2011 after some minor earthquakes near Blackpool, in north-west England, were attributed to test wells being drilled by the energy company Cuadrilla.
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