Ключевые слова: accident, background, casing, catastrophe, chemical, chimney, clean, collapse, construction, contamination, crude, dark, death, defilement, depletion, drains, drilling, ecology, energy, environment, equipment, factory, fuel, global, grass, ground, heavy, impurity, industrial, industries, industry, light, metal, nature, oil, petroleum, pipe, pipeline, pollute, pollution, power, production, refinery, shale, silhouette, soil, steel, sun, technology,