Few economic regions have made much progress in this transformation. In fact, the United States is now investing heavily in natural gas without recognizing or caring that its shale-gas boom, based on new hydraulic-fracturing technology, is likely to make matters worse.
几乎没有哪个经济区在此次转型中取得了显著的进展。事实上，美国现在对天然气大量投资，却不承认也不在乎即将开始的基于全新水力压裂技术的页岩气大发展可能会使情况进一步恶化。