The Endangered Species Act (ESA) is the nation’s most popular and powerful environmental law. There has been much discussion (and disagreement) over whether the law is a success or failure. On the one hand, almost no protected species have gone extinct since the ESA was enacted. On the other hand, equally few species have fully recovered. In fact, less than 3 percent of protected species have achieved recovery.
So why have so few animals recovered under the ESA? Too little regard for property rights.