Thread:LucidPigeons/@comment-27908083-20151208062004/@comment-27560932-20151208062750

If I interpret your question right, the go-to example of a CM polluter would probably be Verminous Skumm, who's described as "existing to accelerate the environment's decline" and is essentially the worst of the eco-villains in the show. I can't think of any others off the top of my head, but I do remember back on the Monster forum back on TV Tropes, a Star Trek villain was up for discussion because their pollution came at the risk of an entire planet. Unfortunately, I can't recall their name.