That's a very bold statement that needs some justification.
Take climate change. For the moment, I don't care if you believe in it or not: just take it as a given, because something like that is certainly physically possible.
Let's say for years many countries polluted the atmosphere with CO2. Over time, it substantially changes the planet's climate and causes untold trillions of dollars of damage to billions of people.
How do torts handle this? For one, who does the suing? Do we allow class action lawsuits with billions of people? What about countries that don't allow class action lawsuits?
What if one heavily-polluting country has for years funded propaganda opposing accurate science, and when chickens come home to roost it still insists that carbon emissions had nothing to do with warming climate? What if the legal system refuses the huge payoffs that would be required? What if the will happens to be there but the country just can't afford to pay for the damages it caused?
Is it even fair to levy taxes or fines on people to pay for something that's been going on for generations? After all, why should our descendants be forced to suffer because of our present day callousness and shortsightedness?
Should people who benefited from climate change be forced to pay more? How does one deal with the fact that everyone, to varying extents, helped cause it? Is it only people who were totally off the grid and carbon free who should get to receive compensatory payouts?
Maybe you should take issue with those countries' laws rather than anarcho-libertarian law.
>What if the will happens to be there but the country just can't afford to pay for the damages it caused?
Sometimes we can be faced with a situation where a destitute criminal causes more damage than he will ever be able to repay. Insurance is a possibility in protecting victims faced with such a circumstance. I am not sure what else you think we could do though, or how this is supposed to be a valid objection to anything I've said, even granting for the sake of argument that climate change can be directly attributed to certain perpetrators.
Hold on a second though Al Gore. I am not so much a climate change denier as a believer in science. For any model in the natural sciences to have validity, that model needs to be able to predict. As much as it is repeated that the current science is beyond questioning, climate change scientists still lack a single accepted model which is able to predict anything.
If you had one then we might be able to attribute a certain amount of damage to one individual from their seaside home being washed out to myriad CO2 emitters. Certainly this would be a massive clusterfuck if you actually had valid science, way more than a region would have to deal with sorting out the horrible situation with typical pollution governments have caused, but I can't give perfect answers on how people might sort this hypothetical out.