The dominant approach to environmental policy endorsed by conservative and libertarian policy thinkers, so-called free market environmentalism (FME), is grounded in the recognition and protection of property rights in environmental resources. Despite this normative commitment to property rights, most self-described advocates of FME adopt a utilitarian, welfare-maximization, approach to climate change policy, arguing that the costs of mitigation measures could outweigh the costs of climate change itself. Yet even if anthropogenic climate change is decidedly less than catastrophic - indeed, even if it net beneficial to the globe as whole - human-induced climate change is likely to contribute to environmental changes that violate traditional...