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    Yet within the coming decade, the legendary coal mines of Germany&#;s Ruhr Valley maySteel production jobs are on the decline as well, due to mechanization.


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    Mechanization of West ia&#;s coal mines took place gradually throughout the first half of theth century. Traditionally, coal mining involved


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    the chain of underground mechanization was forged with the introduction of mechanicalcoal mining are less dramatic than those which accompanied the.


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    Donald Trump&#;s promise to bring coal mining jobs back to West ia is pure fantasy. Even if environmental protections are eased under a


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  • coal mining | Britannica.com

    coal mining: Extraction of coal deposits from the surface of Earth and fromand underground deposits today is a highly productive, mechanized operation.


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  • History of coal miningWikipedia

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  • Mining Firms in South Africa Move Toward…

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    Fewer than,UMWA members still mine coal after decades of mechanization, bloody picket-line battles and changing regulations.


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