Hello there i wanted to suggest if nests could take damage with certain chunk pollution amout that player could determin in the settings rather than after spawning 60 biters.
I feel like this has a huge potential. Pollution could act like a sort of forcefield that slowly kills all nests close to your base.

So if that is possible and won't be too much time bother it would be very awesome.

Heavily polluted areas will spawn biters very quickly. Which in turn will quickly lead to reaching the 60 spawn threshold. So yes, it already works like this!