Time(Apr.9,2012)有关石油的实情Extreme oil-form the deep Atlantic to the Arctic,from fracking in the U.S.to sands in Canada-isreplacing dwindling supplies.But it comes at a heavy economic and environmental cost.以极端方式开采的石油——从大西洋深处到北极地区,从美国的水力压裂法到加拿大的油砂矿开采——正在替代日趋萎缩的能源供给。但这样做要付出高昂的经济和环境代价。 Time (Apr.9,2012) Facts about oil Extreme oil-form the deep Atlantic to the Arctic, from fracking in the USto sands in Canada-isreplacing dwindling supplies.But it comes at a heavy economic and environmental cost. Modeled oil - from the depths of the Atlantic to the Arctic, from fracking in the United States to oil sands mines in Canada - is replacing an ever-shrinking energy supply. But doing so requires high economic and environmental costs.