Ключевые слова: alternative, america, beautiful, change, clean, climate, clouds, columbia river, conservation, ecology, efficiency, electric, electricity, energy, environment, environmental, field, generate, generation, generator, global, grass, green, industrial, industry, innovation, landscape, nature, north america, panorama, panoramic, power, production, propeller, renewable, resource, sky, spin, station, sunrise, sustainability, sustainable, technology, turbine, twilight, usa, warming, washington, wind, wind turbine,