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Cwmbran firm aims to make fracking 'safer'

3 October 2013 Last updated at 14:23 BST

Protests opposing drilling for shale gas underground have been in the headlines for months and on Thursday councillors in Rhondda Cynon Taf and the Vale of Glamorgan are being asked to decide whether to allow exploratory drilling at four sites.

Meanwhile, an engineering company in Cwmbran has come up with ideas which they say could make drilling for shale gas safer and less polluting.

BBC Wales' Environment Correspondent Iolo ap Dafydd has been given exclusive access.

Fracking fears over drilling bids