全部

1·But cleaning up the tar sands will not be easy.

但是清理焦油沙并不容易。

2·Some American retailers have forsworn fuel from the tar sands.

一些美国零售商发誓不购入产自油砂的燃料。

3·Tar sands and biofuels represent only a small part of global energy use.

沥青砂及生物燃料仅占全球能源消耗的一小部分。

4·Alberta tar sands: Referred to as the most damaging project on the planet.

阿尔伯达焦油砂：被称为地球上最具破坏性的项目。

5·On the one hand, America already imports plenty of oil from the tar sands.

一方面，美国已有大量的焦油砂制油进口额。

6·Canada is making desperate moves to prop up its tar sands and logging industries.

加拿大正不顾一切地采取行动，支撑其焦油砂和伐木业。

7·True, alternative sources, like oil from Canada’s tar sands, have continued to grow.

确实，替换能源在不断增长，如加拿大从焦油砂中开采油。

8·An estimated 32 billion barrels of oil could potentially exist in Utah's tar sands.

据估算，仅犹他州油砂矿的储量就高达320亿桶。

9·Extracting oil from tar sands causes more carbon emissions than traditional drilling.

从油砂中提炼石油比传统的钻取产生更多的碳排放。

10·The return on sources such as tar sands and biofuels like ethanol are in the single digits.

其他如沥青砂及乙醇等生物燃料的能源回报倍数仅有个位数。