Ключевые слова: air, atmosphere, building, chemical, chimney, climate, condensation, damage, danger, dirty, drying, ecology, emissions, energy, environment, environmental, environmental pollution, factory, global, harmful emissions, industrial, industry, material, pipe, plant, pollute, pollution, process, processed, resource, river, sawmill, sky, smog, smoke, smoking, station, technology, timber, warming, wood, wooden,