Ключевые слова: air, atmosphere, carbon dioxide, carbon emissions, carbon footprint, chimney, city, climate change, coal power, contamination, eco friendly, ecology, emissions, energy, environment, environmental awareness, environmental impact, environmental protection, factory, fuel, fumes, global warming, greenhouse gases, hazardous, industrial, industrial revolution, industrial waste, industrialization, industry, manufacturing, oil refinery, plant, pollution, pollution control, pollution prevention, power generation, production, smoke, smoke stacks, sustainable development, toxic, urban, waste disposal,