AnCapism and nature?

I am just a passerby but i want to ask someone who knows the answer. I understand that anarcho capitalism is a world where world is controled by market and stuff. One of the closest we got to an apism in my ooinion is the wild west. Almost no say of the government and no taxes paid to the govenment and security hired on demand and protection provided if paid for. But every ancap society trlies on exploiting nature, even if it didnt, who would come to say that we are polluting and destroying earth/oceans/deforestating or poluting the atmosphere to much. From what i understand every company can do whatever until the insurance troops step in. Am i wrong, is there some system to dodge this?