Ключевые слова: absorption, atmosphere, bio, car, carbon, climate change, co, co2, contamination, danger, dioxide, eco friendly, ecology, emission, environment, environmental conservation, factory, fog, footprint, gas, green, greenhouse, icon, illustration, industry, label, leaf, motorcycle, nature, neutrality, photosynthesis, plant, pollution, protect, protection, recovery, recycle, recycling, reduction, safe, smoke, social issues, solution, sticker, sustainable energy, symbol, traffic, tree,