Significantly warmer Arctic surface temperatures during the Pliocene indicated by multiple independent proxies   Publication Date:   2010-07 Creator:   A.P. Ballantyne D.R. Greenwood J.S. Sinninghe Damste A.Z. Csank J.J. Eberle N. Rybczynski Publisher.Display:   Geological Society of America Subjects.Display:   Climate change Global warming carbon dioxide unknownArctic regions Source Institution:   Florida International University Significantly warmer Arctic surface temperatures during the Pliocene indicated by multiple independent proxies