Anna Ruth Halberstadt leads study resolves a long-standing discrepancy in the geologic record

In a paper publish recently in the journal Geology, Ruthie Halberstadt and coauthors Rob DeConto and Douglas E. Kowalewski addressed a discrepancy between marine data from the Ross Sea and data collected in the McMurdo Dry Valleys. Ruthie completed this research as part of her P.h.D. in geosciences. Read more in the UMass news release and journal paper.

Ray Bradley publishes review article on past extreme tropical hydrological events

In a recent paper published in Reviews of Geophysics, UMass Distinguished Professor Raymond Bradley synthesized information from lake sediments, stalagmites, and offshore marine sediments to provide a comprehensive record of changes over the past ∼70,000 years. He and coauthor Henry Diaz describe how freshening of the subpolar North Atlantic led to a rapid reduction in the northward flux of heat by the ocean, subsequent reorganization of the atmospheric circulation, and, in turn, climate modifications in various parts of the world. Read the paper here.