Ключевые слова: bore, borehole, drill, drilling, earth, eco, ecology, electricity, energy, environment, europe, factory, fumarole, generation, geological, geology, geothermal, geothermic, green, heat, hot, iceland, icelandic, industrial, industry, krafla, mountains, natural, pipe, pipeline, pipes, pipework, piping, plant, pollution, power, renewable, scandinavia, station, steam, sustainable, technology, thermal, tube, turbine, volcanic, volcano,