Ключевые слова: abstract, ash, background, black, black coal, burning, canyon, coal, dark, deposits, dirty, ecology, energy, environment, exploit, extraction, fire, fuel, gas, heat, hot, industrial coal, industry, macro, manufacturing, materials, metallurgical, mine, miner, mineral, nature, power, resources, rock, stone, stove, textured, textures, unmined coal, warmth,