Editorial comment

A. Blume,Managing EditorAdrienne.Blume@GulfPub.com The US and Canada are the world’s largest shale gas producers, and growing. By 2016, shale gas is projected to make up more than half of all gas output in the two countries; by 2035, the percentage may rise to two-thirds. But what about shale development outside of North America? Exploration efforts are rising throughout the world, although financial, geological and political roadblocks continue to challenge development. Money, geology complicate China shale. Thought to hold the largest shale gas reserves in the world of more than 30 Tcm (Fig. 1), China has spent four years of exploration and drilling for shale reserves in the hope of rep