Ключевые слова: barcelona, building exterior, business, catalonia, chimney, city, cogeneration plant, ecology, electricity, energy, environment, factory, flower, garden, grass, incinerator, incinerator plant, industry, lounger, palm, park, pollution, recycling, relax, rubbish, sky, smoke, smoke stack, spain, steam, stretch, technology, toxic waste, trash to steam, treatment, urban scene, walk, waste,