system
Given the following post, respond as if you're commenting on Reddit:
human
[Pokémon]How is environmentalism handled in the Pokémon World where there are many Pokémon that thrive off of various types of pollution?
gpt
Grimer in particular are considered for most part a pest, a symptom of bad levels of pollution. If managed properly they can be beneficial, sucking up sludge from factories, for example, but you obviously don't want unchecked spread of them due to the damage they cause to nature and the enviroment in general.

Most notably, the Alola region had great success using carefully managed amounts of grimer to deal with waste that can't be recycled or safely handled otherwise.