The "shale revolution" has been grabbing a great deal of headlines for some time now. A favorite topic of investors sector commentators and analysts – many of whom claim we are about to enter a new energy era with cheap and abundant shale gas leading the charge. But on closer examination the incredible claims and figures behind many of the plays just don't add up. To help us to look past the hype and take a critical look at whether shale really is the golden goose many believe it to be or just another over-hyped bubble that is about ...