There is widely thought to be a proportionality constraint on harming others in self-defense, such that an act of defensive force can be impermissible because the harm it would inflict on an attacker is too great relative to the harm to the victim it would prevent. But little attention has been given to whether a corresponding constraint exists in the ethics of compensation, and, if so, what the nature of that constraint is. This article explores the issue of proportionality as (...) it applies to the liability to compensate. The view that some perpetrators are not liable to pay full compensation because doing so would be disproportionately burdensome is clarified and defended, and it is asked what view we should adopt instead. A key step in that inquiry is an argument that someone is liable to bear the cost of compensating for an injury if and only if she would have been liable to bear that same cost in defense against that same injury ex ante. (shrink)

Much has been written about climate change from an ethical view in general, but less has been written about it from a libertarian point of view in particular. In this paper, I apply the libertarian moral theory to the problem of climate change. I focus on libertarianism’s implications for our individual emissions. I argue that even if our individual emissions cause no harm to others, these emissions cross other people’s boundaries, although the boundary-crossings that are due to our ‘subsistence emissions’ (...) are implicitly consented to by others, there is no such consent to our ‘non-subsistence emissions’, and there is no independent justification for these emissions. Although offsetting would provide such a justification, most emitters do not offset their non-subsistence emissions. Therefore, these emissions violate people’s rights, which means that they are impermissible according to libertarianism’s non-aggression principle. (shrink)

Excusable ignorance not only undermines moral culpability but also agent-responsibility. Therefore, excusable ignorance absolves of liability for costs. Specifically, it defeats liability that is meant to be derived from causal responsibility wherever strict liability cannot be justified. To establish these claims this paper assesses the potential of arguments for liability of excusably ignorant agents and thereby demarcates the proper domain of strict liability and traces the intuition that seemingly supports strict liability accounts to more general principles. The paper concludes that (...) liability cannot be justified in cases of excusable ignorance. Finally, it stresses that although excusable ignorance defeats the link from causal responsibility to liability for costs this does not imply that victims are left to fend for themselves. (shrink)