How the fracking process works

Help

The government has given the go-ahead for a firm to resume the controversial technique known as fracking to exploit gas in Lancashire.

The company, Cuadrilla, was stopped from fracking after two tremors near Blackpool.

Huw Clarke, a geologist with Cuadrilla, explained the fracking process to the BBC's John Moylan on site in Lancashire.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.