Some greens worry that natural gas could hamper the development of renewable energy.

一些环保人士担心天然气的应用会阻碍可再生能源的研究。

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Some greens worry that natural gas could hamper the development of renewable energy.

ECONOMIST: What bigger estimates of America��s reserves could mean

With the possible exception of the United States, where influential greens oppose drilling in Alaska, all Arctic coastal countries want this development.

ECONOMIST: Resources: Hidden treasure | The