Ключевые слова: air, airfield, airport, airsock, alternative, background, blue, cloudy, cone, conservation, direction, electric, electricity, energy, environment, environmental, farm, generation, generator, green, indicator, landscape, measurement, meteorology, mill, nature, power, production, red, renewable, sign, sky, sock, striped, sustainability, sustainable, technology, turbine, turbines, vane, warning, weather, white, wind, windbag, windfarm, windmill, windpower, windsock, windy,