In some cases,there was open war between labor activists and coal mine operators.

VOA: special.2009.09.07

and ideally at some point coal, coal-fire power plants.

理想情况下，在某个时间点可能还会关闭煤炭以及燃煤电厂。

全球变暖与国力 - SpeakingMax英语口语达人