Factory Pipes Emitting Smoke is a great stock video that consists of footage of dark smoke coming from two factory pipes near a river. This 3840x2160 (4K) footage will look stunning in any video project that has to do with air pollution, environmental degradation, industrial emissions, etc. This clip will look great in your next project, intro, or documentary. Astonish your viewers, and take your film's production value up a level.