IODICALS
forests annually-a loss of 4,000 species
-per year if there are 2 million in the for- ests, and 40,000 if there are 20 million. Biodiversity is important for more than moral and aesthetic reasons, they say; it provides "enormous direct economic benefits. . . in the form of foods, medi- cines, and industrial products." To save "our fellow living creatures and ourselves in the long run," Ehrlich and Wilson pro- pose a radical worldwide ban on the devel- opment of "relatively...