Ключевые слова: atmosphere, beginning, biology, carbon, care, change, climate, climate change, clip art, co2, concept, conservation, cut out, development, dioxide, earth, eco, ecological, ecology, energy, environment, environmental, forest, friendly, global, global warming, green, grow, growing, growth, hand, ideas, industry, leaf, lifestyles, manager, nature, neutral, no people, outside, person, planet, plant, pollution, protect, protection, recycle, recycling, reduce, tree,