Columbia subject headings:
Africa, Southern--Economic conditions.
Africa, Southern--Population.
Environmental policy--Africa, Southern.
Environmental protection--Africa, Southern.
Sustainable development--Africa, Southern.
Harvard subject headings:
Environmental degradation--South Africa.
Environmental policy--South Africa
Sustainable development--South Africa
Princeton subject headings:
Environmental degradation--South Africa.
Environmental policy--South Africa.
Sustainable development--South Africa.