Columbia subject headings:
Harvard subject headings:
Arctic regions--Environmental conditions--Congresses.
Ecology--Arctic regions--Congresses.
Greenhouse effect, Atmospheric--Arctic regions--Congresses.
Nature--Effect of human beings on--Arctic regions.
Princeton subject headings:
Arctic regions--Environmental conditions--Congresses.
Ecology--Arctic regions--Congresses.
Greenhouse effect, Atmospheric--Arctic regions--Congresses.
Nature--Effect of human beings on--Arctic regions--Congresses.