Columbia subject headings:
Economic development--Environmental aspects.
Environmental policy--International cooperation.
Environmental policy--United States.
Global warming--United States.
United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil)
United Nations Conference on Environment and Development (Rio de Janeiro, Brazil) : (1992)
United Nations--United States.
Harvard subject headings:
Princeton subject headings:
Economic development--Environmental aspects.
Environmental policy--International cooperation.
Environmental policy--United States.
United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil)