Icy hunt for old air.
Firestone
Chaz
C
D000818:Animals; D000864:Antarctic Regions; D002245:Carbon Dioxide / Q000032:analysis*; D057231:Climate Change; D006801:Humans; D007053:Ice / Q000032:analysis*; D008697:Methane / Q000032:analysis
D007053:Ice; D002245:Carbon Dioxide; D008697:Methane