Columbia subject headings:
European Union countries--Politics and government.
European Union.
Greenhouse effect, Atmospheric--Government policy.
Policy sciences.
Harvard subject headings:
Environmental policy--European Union countries--Decision making.
European Union
Greenhouse effect, Atmospheric--Government policy--European Union countries.
Greenhouse gases--Environmental aspects--European Union countries.
Princeton subject headings:
European Union countries--Politics and government.
European Union.
Greenhouse effect, Atmospheric--Government policy.
Policy sciences.