Ключевые слова: backloader, bagger, big, browncoal, bucketwheelexcavator, business, carbondioxide, carbonfootprint, coal, coalmine, conveyorbelt, crawler, cultivator, curve, destruction, dig, digger, dump, earth, ecology, economy, energy, energycrisis, environment, excavation, excavator, exploitation, fossilfuel, geology, heavy, industrial, industry, iron, landscape, large, load, machine, machinery, metal, mine, open, opencast, ore, production, quarry, site, transport, transportation, truck, vehicle,