Ключевые слова: black, carbon dioxide, central heating, co2, coal, coal mining, coal plant, coal power plant, concept, currency, dark, deposits, ecology, effect, energy, environment, exploitation, extract, extraction, fuel, gas, glove, hand, hand coal, heat, hold coal, increase, industry, inflation, man, mine, miner, mineral, mining, money, nature, person, plant, pollution, power, power plant, power station, price, resources, saw, smog, stone, tribute, winter, worker,