air pollution

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