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https://www.umass.edu/earth-geography-climate/about/directory/raymond-s-bradley Raymond S. Bradley : Earth, Geographic, and Climate Sciences : UMass Amherst Professor Emeritus Bradley specializes in late Holocene changes in climate and how that relates to early human migration in the Arctic and North Atlantic region raymond s bradleyearthgeographicclimatesciences https://www.umass.edu/natural-sciences/news/raymond-bradley-cryosphere Raymond S. Bradley Shares the Importance of the Cryosphere with 'MassLive' : College of Natural... Bradley has written a column about the importance of the cryosphere. raymond s bradley