Ключевые слова: air, chemical, climate, concept, conservation, contamination, danger, dirty, disaster, earth, eco, ecology, energy, environment, environmental, environmental destruction, environmental pollution, environmental problems, factory, fuel, gas, global, green, illustration, industrial, industry, landscape pollution, life, natural, nature, nature pollution, oil, planet, plant, pollution, power, protection, recycle, recycling, sea, ship, smoke, technology, toxic, urban, warming, waste, water, whale,