What is fracking and why is it so controversial?

The Government is expected to announce whether or not it will give the go ahead to two fracking schemes in Lancashire.
Lancashire County Council had turned down planning applications from shale gas company Cuadrilla for fracking at two locations in Fylde.
Cuadrilla, which had hoped to frack at Preston New Road and Roseacre Wood, appealed against the decision and it went to a public inquiry, which was heard earlier this year.
Communities secretary Sajid Javid will be delivering his final decision later today.
Fracking is an incredibly controversial process – and if they do give the schemes... read more