::::::As I've said before, the article as it stands is overwhelmed by the environmental concerns stuff, most of which is far too US specific. It looked a lot better with that section removed, although it does need a summary (perhaps a couple of paragraphs) to cover the main areas of concern (and hopefully managing to not mention the US if at all possible, as the concerns are common to most countries where there is exploration for shale gas, even if it's best documented in the US).