Columbia subject headings:
Harvard subject headings:
Climatic changes--Political aspects
Climatic changes--Social aspects
Climatic extremes--Political aspects.
Climatic extremes--Social aspects.
Environmental degradation--Social aspects.
Global warming--Political aspects.
Global warming--Social aspects.
Refugees--Environmental aspects.
Violence--Environmental aspects
War--Environmental aspects
Princeton subject headings:
Climatic changes--Political aspects.
Climatic changes--Social aspects.
Climatic extremes--Political aspects.
Climatic extremes--Social aspects.
Environmental degradation--Social aspects.
Global warming--Political aspects.
Global warming--Social aspects.
Refugees--Environmental aspects.
Violence--Environmental aspects.
War--Environmental aspects.