01-01-1996 This text has been written primarily for the specialist market of second and third year undergraduate and post-graduate students of economics. The clear explanations and basic principles that underpin the text, however, make it readily accessible to non-economists coming to environmental...
ทรัพยากรหลัก19-01-1999 Increasingly sophisticated technology and an ever-expand-ing base of knowledge have not been enough to allow humans to halt the worldwide progression of environmental degradation. Extensive fieldwork in both Africa and the United States convinced Allan Savory that neither the forces of nature nor...