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10 facts about coal mining in poland

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10 facts about coal mining in poland

Feb 20 2012 · In Poland the cost of producing 1 GJ of energy from it is three times lower than for hard coal six times lower than for natural gas and over eight times lower than for heating oil However exploiting browncoal fields is environmentally hazardous as it destroys large expanses of soil changes the surfacewater structure causes air pollution and is noisy

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