Ключевые слова: above, area, blue, clouds, ecology, electricity, energy, environment, europe, factory, fumarole, geo, geology, geothermal, green, ground, heat, hot, iceland, icelandic, industrial, industry, island, krafla, lake, landscape, mountain, myvatn, natural, nature, northern, pipe, pipeline, plant, power, renewable, sky, smoke, spring, station, steam, sulfur, summer, thermal, travel, tube, volcanic, volcano, water,