Latest update: 21/09/2011
Shale gas has been hailed as a potential game changer in the energy industry. It could double the world’s existing supplies of natural gas. So why is it so controversial? The answer lies in the technique required to extract this deep earth natural gas. It's known as "fracking" and this week Environment explains why so many people are opposed to this technique, be it here in France or as far away as Australia.