Ключевые слова: alternative, better, business, cell, city, clean, concept, cord, eco, ecology, electric, electricity, energy, environment, future, generate, global, green, house, icon, industry, leaf, life, line, live, nature, ozone, panel, plant, plug, pollution, power, produce, protect, recycle, save, social, society, solar, solution, sun, sustainable, technology, trend, warming, water, way, weather, windmill, world,