Ключевые слова: air, black, blue, brown, bulrush, burning, cane, cattail, cloud, construction, contamination, drill, drilling, ecology, energy, environment, environmental, extraction, fire, flame, flare, flaring, flora, fume, gas, grass, industry, landscape, mace, nature, oil, outdoor, petroleum, pipe, pipeline, plant, pollution, production, protection, reed, reedmace, russia, security, siberia, sky, smoke, stem, swamp, torch,