Ключевые слова: area, big, carbon, coal, destruction, dig, digging, dust, earth, energy, environment, environmental, equipment, excavate, excavation, excavator, extract, extraction, fossil, fuel, heavy, hole, huge, industrial, industry, infrastructure, iron, land, landscape, large, layer, machinery, machines, material, mine, mining, open, open pit, opencast, pit, pollution, power, primary, raw, reserve, resource, source, supply, surface,