Ключевые слова: alternative, biomass, calm, carbon, clean, climate, conservation, earth, eco, eco friendly, ecology, energy, environment, forest, fresh, friendly, generation, green, growth, hidden, hydro, life, low impact, lush, natural, nature, neutral, organic, peaceful, power, protection, pure, quiet, renewable, scenic, serene, solar, solutions, source, sunlight, sustainability, sustainable, systems, trees, unspoiled, vibrant, vital, wildlife, wind,