Ключевые слова: atmosphere, blue, change, chemical, climate, climate change, concept, damage, destruction, dioxide, dirty, disaster, earth, eco, ecological, ecology, electricity, energy, environmental, environmental conservation, factory, fuel, future, gas, global, global warming, globe, human, industrial, manufacturing, mask, nature, no people, people, pipe, planet, pollute, pollution, problem, protect, protection, refinery, sky, smog, smoke, steam, toxic, warming, world, world map,