Ключевые слова: air, apartment, bio, brazil, brazilian, building, bulb, carbon, change, clean, climate, concept, conceptual, earth, eco, ecology, economic, electricity, emission, energy, flag, global, grass, green, home, house, household, icon, increase, innovation, lamp, light, low, natural, photovoltaic, plant, power, recycling, renewable, resources, rio de janeiro, saving, solar, south america, symbol, technology, warming, world,