Columbia subject headings:
Climatic changes--Government policy--United States.
Global warming--Government policy--United States.
U.S. Global Change Research Program--Evaluation.
Harvard subject headings:
Climatic changes--Research--Government policy--United States.
Climatic changes--Research--United States
Earth (Planet)--Research--Government policy--United States.
Geodynamics--Research--Government policy--United States.
Geodynamics--Research--United States.
U.S. Global Change Research Program.
Princeton subject headings: