Ключевые слова: air, business, businessman, carbon, chemistry, cloud, co2, concept, conservation, copy, creative, dioxide, disaster, eco, ecology, energy, environment, environmental, exhaust, formula, fumes, gas, global, globe, gravity, hand, hands, industry, landscaping, mock, molecular, nature, pollution, protection, sign, sky, smog, smoke, space, steam, stratosphere, support, technology, text, up, white, world, zero,