air pollution

aerial air atmosphere carbon chemical chemicals chemistry chimney climate cloud clouds cloudy color colorful contamination cooling critical damage danger dangerous destruction dioxide disaster disease dramatic ecological ecology emission emissions emit energetic energy environment factory fog foggy fumes funnel gas generate global harmful high illegal industrial industry magenta morning nature petrochemical pipe plant poison poisonous pollutants pollute polluted polluting pollution polution power powerplant problem protection purple sky smog smoke smokestack station steam terrible thermal tower toxic unhealthy vapor vertical violet warming