Present significant potential for improvement in terms of its environmental impact without entailing excessive costs, taking into account in particular.

在没有需要大量成本的前提下，依据环境影响的角度看，存在显著的改善潜力，尤其考虑到。

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He says the potential of the coasts is shown by the vast amounts of oil that have been extracted with little environmental impact from offshore sites in the Gulf of Mexico.

他说，在墨西哥湾沿海大量开采石油却没有造成什么环境污染的事实表明沿海采油的可行性。

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Ms. Egan said it was too early to ascertain how much oil had leaked and determine any potential environmental impact.

WSJ: BP to Cut Oil Production on Alaska's North Slope

But before the first 24 hours were out, and while the search-and-rescue operation was ongoing, the Coast Guard was eyeing the potential environmental impact of the explosion.

WSJ: Coast Guard Log Details Early Hours of Spill

The Obama administration rejected the initial proposal from the Canadian energy company TransCanada, saying it needed more time to gauge the potential environmental impact of the project.

CNN: STORY HIGHLIGHTS