Ключевые слова: air, blue sky, clean, climate change, clouds, conservation, cooling system, cooling tower, eco, ecofriendly, ecology, emission reduction, emissions, energy, environment, environment protection, environmentalism, fresh, green energy, green industry, green leaves, green power, green technology, industrial, industry, innovation, leafy, modern, natural, nature, photosynthesis, power plant, renewable, steam, sustainable, sustainable development, symbol, technology, utility,