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The Good News About Gas. The Natural Gas Revolution and Its  Consequences  / John Deutch. Foreign Affairs, January/February 2011."Good news about energy is rare. Energy use and its cost are rising  worldwide, most countries remain dependent on oil imports, and little  progress has been made toward curbing climate change. So the world  should take notice of the recent dramatic increase in estimates of  unconventional sources of natural gas in North America and elsewhere,  perhaps the greatest shift in energy-reserve estimates in the last half  century. In the past few years, thanks to technological advances, vast  amounts of natural gas -- particularly gas trapped in underground shale  basins -- have become economically viable..."  lire le début de l'article  sur le site de la revue