Columbia subject headings:
Environmental policy--United States.
Environmental protection--Research--United States.
Environmental sciences--Research.
Research and development contracts, Government--United States.
Sustainable development--United States.
Technological innovations--Government policy--United States.
Technology and state--United States.
Harvard subject headings:
Environmental policy--United States
Environmental protection--Research--United States
Sustainable development--United States
Princeton subject headings:
Environmental policy--United States.
Environmental protection--Research--United States.
Sustainable development--United States.