Ключевые слова: air, aspirations, change, changing, clean, climate, concept, destruction, different, dirty, eco, ecology, effect, energy, environment, environmental, exhaust, factory, flip, fumes, gas, global, gray, hand, industrial, industry, landscape, nature, open, page, paper, pipe, pollution, problem, reality, replace, scene, scenic, season, sky, smog, smoke, steam, toxic, turn, warm, warming, weather, wind,