I consider myself to be a fairly staunch Libertarian. I believe that the government should be limited to protecting life, liberty, and property (natural rights) from being harmed by others. I also think that much environmental law could simply be handled with tort law (for damage to property) or criminal law (for harm to human health).
I think this logic works well to protect health and private property. However, the sticky wicket is how shared resources are managed. For example, the Chesapeake Bay in Maryland was discovered to have suffered great environmental damage in the 1970s due to algal blooms & subsequent oxygen-depletion, industrial waste, and overfishing. Since it’s a shared resource, direct damage to private property is difficult to prove, and there are multiple polluters with different interests causing the damage (factories, farms, fishermen, etc.). It seems that some sort of owner is required to set rules for how the resource is managed and the government seems like an obvious choice. While the government has classically done a poor job of managing the environment on public or shared property, I haven’t found any good arguments for an alternative, which suggests that the public must hold the government accountable for managing public/shared regions to prevent environmental damage. Seems reasonable.
The other tricky thing is small-impact pollution, which may be difficult to deal with using the clunky court system to cover damages. For example, if a neighbor were to leave bags of garbage on my lawn, they are certainly causing harm to my property. However, taking them through the clunky court system to cover the damages would probably be more trouble than its worth, since the cost of cleanup is relatively small. Hence littering laws seem like an reasonable deterrent, where a minimum fine is imposed for any littering that is much higher than the cost of cleanup.
Another tricky thing to deal with is damage to ecosystems that may not readily surface as property damage. For example, if farmers are shooting wolves to protect their livestock, and the animals are hunted to the point of extinction, who speaks for the wolves? They don’t explicitly belong to anyone, and their benefit to humans (controlling deer populations, etc) isn’t apparent to everyone (and certainly not livestock farmers). Legislation protecting/managing wildlife seems appropriate.
The last thing that I have difficulty with is situations where the polluter is difficult to identify. For example, if an industrial site buries waste on their property and it contaminates the ground water. If people are harmed a criminal suit is probably appropriate, but it may be difficult to identify who has done the damage without an investigation. Would this sort of investigation be conducted by the local police force if people begin getting sick? How would the police know to start an investigation? It seems as though establishing rules to prevent the mishandling of dangerous waste is reasonable.
I suppose the question that I have is whether there are alternative ways to deal with these sorts of situations that I haven’t thought of. Again, I think that most environmental laws can be handled with tort law or criminal law, but it seems to me that there is a legitimate argument for environmental law in cases such as those described above. I wonder what others think of these situations and others like them.