Ключевые слова: air, atmosphere, backdrop, background, beautiful, beauty, blue, bright, calm, carbon, change, chemical, clean, clear, climate, cloud, clouds, cloudscape, cloudy, co2, color, commitment, concept, conservation, contamination, control, covered, cumulonimbus, cumulus, damage, danger, day, daylight, dioxide, disaster, eco, ecology, effect, emissions, energy, environment, environmental, fluffy, formula, gas, global, greenhouse, heaven, high, idyllic, illustration, industrial, industry, light, meteorology, nature, nobody, outdoors, outside, overcast, oxygen, pattern, picturesque, plant, pollution, scenery, scenic, season, sign, sky, smog, smoke, soft, space, symbol, technology, toxic, view, warming, weather, white, wind,