Reuters: France's GDF Suez is the second heavyweight energy firm to dip a toe into British shale gas exploration after taking a 25 percent stake in onshore projects in northern England and Wales. The Paris-based company said on Tuesday it would team up with Dart Energy to develop 13 licenses in the western and eastern parts of the Bowland Basin, which has already attracted investment from Britain's Centrica. This will be another boost to Britain's bid to exploit shale-gas deposits after the government unveiled...