Druid - "Eco-Zealot" Playthrough

[Tooboredtoquit]

I'm starting up again with an evil-Druid play-through, sort of like out to do some sort of dastardly Captain Planet nonsense, and I wanted to see if anyone knows of any possible NPCs that I can fight along the way, preferably in the level 10-40 range, which would thematically fit with that vibe. I love this game, but my knowledge of the lore is basically zilch. Can anyone point me in the direction of some readily accessible NPCs that are perceived to be hurting the environment in Norrath?