Shale gas endorsed by UK energy secretary

A senior government minister has thrown his weight behind the exploitation of shale gas.

It is suggested that south Wales has huge reserves that could be tapped by a process called fracking.

Protestors in the Vale of Glamorgan have already made clear their opposition to exploiting gas reserves.

The supporters of shale gas promise it will bring cheaper fuel bills and energy self sufficiency.

BBC Wales environment correspondent Iolo ap Dafydd spoke to Wales Today presenter Jamie Owen about the implications of Energy Secretary Ed Davey's comments to the Royal Society.