I'm not talking about raw safety. I'm referring to the situation where the average costs a resident of the area will incur due to environmental damage surpasses the amount an average person is willing to pay in insurance premiums. In these kinds of areas, insurance in inherently unworkable, regardless of profit seeking or not (again, minus a minor adjustment in margins)
In these places, you can either add in external subsidies to make the numbers work, which is bound to be unpopular with the people having to pay extra money to support people choosing to incur unnecessary costs, or you can accept that there is no workable insurance scheme in the area that and residents must take account of their own risks. There's no real way around this basic reality.