Abstract
In this chapter, I discuss the Endangered Species Act (ESA), along with explaining
what the reader needs to know about species and about certain philosophical issues
regarding species. I investigate how the late stalwart conservative Justice Antonin
Scalia interpreted the fit between the Fish and Wildlife’s definition of harm in the Code of Federal Regulations and what the ESA implies about harm in a landmark
Supreme Court case, Babbitt v. Sweet Home. Scalia argues that the FWS definition of “harm” is inconsistent with the ESA. Here,
I come to Scalia’s defense by responding to objections that have been made to his argument. In my response,
I further fill out his argument and appeal to what I have written elsewhere
about whether we harm individual nonhuman organisms or nonhuman species
when we impair breeding behaviors in our various human-habitat expansion
activities. This question is related to the following broader question prominent
in the field of environmental ethics: whether it makes sense to say that we can
harm populations or even species understood as meta-populations.