This thread has been itching at the back of my ears and I've waited for a good jumping off point.
In 'Randland' a firm polluting a river may very well be sued by every single person downstream of them and probably be boycotted at the very least. If it indeed endangered human life the people responsible would be arrested like any other society, the pollution would have infringed on the property and lives of others and the government would be obliged to put an end to it. Thus for the firm it would be in their rational self interests to dispose of waste safely.
I wonder: How is this a better situation than a law saying "Don't Pollute Rivers" and a regulatory body making sure the law is followed? History has shown that people will skirt such laws, (even if there are laws!) if they don't think they will get caught,
or if the probability of them getting caught is outweighed by the gains made in the meantime. The only 'freedom' being suppressed here is one that has harmful effects.
Let's not even pretend like the "well if someone is harming people, they will be at a market disadvantage, because no one will like them!" is remotely true in the real world. There are always claims of the market self-regulating in this manner, but let's not forget that after the
Bhopal Disaster, which killed literally thousands of people, Union Carbide continued to make massive profits. And if you truly think that the market will self regulate "after a few deaths", you're implicitly putting someone's right to cause another's death underneath a dollar sign.
It's almost as if after events like
the Triangle Shirtwaist Factory Fire, the market will 'self regulate' in the form of workers mobilizing for better protection from companies, asking for more oversight, rather than less.
And if we're going to continue on the Libertarian/Objectivist argument of "well, people won't pollute because of market forces", how are we, as generic humans, to protect ourselves from
Nonpoint pollution? How is the market going to regulate against hundreds of thousands of people dumping trash where it shouldn't go, pouring their used motor oil into gutters, etc? This is a problem in many places. These are things that need to be guarded against for pragmatic and ethical reasons both. Why should there not be legal strictures against someone taking "their property" and "discarding it as they please"?