Columbia subject headings:
Harvard subject headings:
Climatic changes--International cooperation--Congresses.
Environmental policy--International cooperation
Environmental policy--International cooperation--Congresses
Environmental responsibility
Environmental responsibility--Congresses.
Sustainable development
Sustainable development--European Union countries
Sustainable development--European Union countries--Congresses.
Sustainable development--International cooperation
Sustainable development--International cooperation--Congresses.
Sustainable development--United States
Sustainable development--United States--Congresses.
Princeton subject headings:
Environmental policy--International cooperation.
Environmental responsibility.
Sustainable development--European Union countries.
Sustainable development--International cooperation.
Sustainable development--United States.
Sustainable development.