[can't directly reply to nickff..hm, thread too deep?]
In the dream libertarian world of Free Market, every agent has perfect knowledge for every decision they make, courts never make mistakes, transgressors are always held liable, and pot is legal.
I'm assuming they'd probably have to sell themselves into sexual bondage to pay for the lawyer costs, but nickff does outline some interesting options!
1) a number of neighbors who are affected ... and every single one of them has time to go through a two decade lawsuit that they'll likely lose.
2) Okay, they can take out some legal financing. If they're sure to win. Because property owners in this magical world always win when a third party dumps polycyclic aromatic hydrocarbons into their well. I'd like to see a world where someone can get legal financing for what will end up being a $500m (in costs) lawsuit with a payout of maybe $50m (for the litigant, minus lawyer fees.. well, shit). The deeper pocket always wins. Except in Libertarian Land, where the government (which enforces the decision of the courts) doesn't have a monopoly on violence. So I guess it's actually who owns the most Abrams tanks that wins.
3) The small property owner may find a lawyer willing to do 10 years of discovery, 5 years of trials, and 20 years of appeals pro bono. #goodluckwiththat
4) There are some notable pro se litigants! Edward Lawson was the defender in 1983 Kolender v. Lawson and won (cannot be arrested merely for refusing to present identification. Pretty sure that one doesn't hold water anymore though). Robert Kearns fought Ford and Chrysler pro se over windshield wipers. On the other hand, while "it happens more than you'd think," it wins "a lot less than you'd think." I guess in Everything's Fair universe, where not having domain knowledge of 150 years of legal precedent is not a factor, it might win a little bit more often.
>no corporation wishes to gain a reputation that it is unwilling to clean up its own mess
Hahahahaha. Nah, that never happens. Nope. Buddy (and I know I'm not you're buddy), don't drive through coal country. Or eastern TN. Have a nice swim in the Gowanus Canal, and have a sip of sludge from Newtown Creek. Lie down for a little while in this little autobody shop in Queens - you'll only get 300rems a year. Corporations get the reputation that they won't clean up their mess all the time. And you know what happens?
They fucking rebrand.
Strong property rights Free Market randroids live in a perpetual bubble of warped 'insight', where litigation always ends in justice and juries are never tampered with and everything is always discovered in discovery because nobody ever holds things back.