Media playback is unsupported on your device

Shale search given go-ahead

A controversial technique to extract gas by creating underground explosions has been given the go-ahead by MPs on the Energy Select Committee.

Engineers searching for shale gas near Blackpool argue it could revolutionise world energy markets.

Environmentalists have said it pollutes water supplies and increases greenhouse gases.

Roger Harrabin reports.

  • 23 May 2011
  • From the section UK