Penn Earth and Environmental Science Professor Finds Indications of Climate Change in Southern Ocean

To investigate the interplay between climate change and the ocean, Irina Marinov, an assistant professor in the Department of Earth and Environmental Science, has found it necessary to straddle disciplines.

Marinov, who studied physics as an undergraduate before earning her doctorate in atmosphere and ocean sciences, exemplifies an interdisciplinary approach. Her research into the Southern Ocean, the waters that encircle Antarctica, integrates analyses of the physics and chemistry of oceans and atmosphere with studies of the biological components that play a role in the global carbon cycle.

Though sometimes overlooked by scientists, the Southern Ocean below the 30th parallel takes up more than 60 percent of the anthropogenic heat produced on Earth and 40 to 50 percent of the anthropogenic carbon dioxide penetrating into the oceans. The Southern Ocean is emerging as very important for regulating climate.

Writing in Nature Climate Change earlier this year, Marinov and colleagues attempted to explain why the Antarctic Bottom Waters, the ocean’s deepest current, has been shrinking in recent decades. Because the current “hides” heat and carbon from the atmosphere, climate scientists have feared that its slow-down could have repercussions for global warming. These changes have occurred, Marinov explains, because increased precipitation around Antarctica—a consequence of climate change—has made the ocean surface waters fresher, and thus less dense. These lighter waters are less prone to move down through the water column and mix with deeper waters.

Read the full story here.

Arts & Sciences News

The Power of Penn Arts & Sciences

On April 12, 2018, the Power of Penn Arts & Sciences fundraising campaign was announced by the Board of Overseers. Launched in conjunction with the University’s Power of Penn campaign, it aims to raise $550 million for the School of Arts and Sciences.

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2018 Penn Arts and Sciences Dean’s Scholars

Penn Arts and Sciences has named 20 students from the College of Arts and Sciences, the College of Liberal and Professional Studies, and the Graduate Division as Dean’s Scholars. This honor is presented annually to students who exhibit exceptional academic performance and intellectual promise.

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Joseph Subotnik Named Edmund J. and Louise W. Kahn Term Professor

Joseph Subotnik, Professor of Chemistry, has been named Edmund J. and Louise W. Kahn Term Professor of Chemistry. A theoretical chemist who focuses on electronic processes in the condensed phase, Dr. Subotnik has made key contributions in electronic structure theory, chemical dynamics, and statistical mechanics.

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Two Penn Arts and Sciences Professors Named Guggenheim Fellows

Charles L. Bosk, Professor of Sociology, and Charles Yang, Professor of Linguistics and Computer Science, have been awarded 2018 John Simon Guggenheim Memorial Foundation fellowships.

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Ahmad Family Endowment Supports Penn Global Seminars

Hyder Ahmad, W’90, and his family have made a generous gift to establish the Ahmad Family Endowment for Penn Global Seminars in Arts and Sciences.

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Abraham Nitzan Named Donner Professor of Physical Sciences

Abraham Nitzan, Professor of Chemistry, has been named Donner Professor of Physical Sciences. Nitzan’s research focuses on the interaction of light with molecular systems, chemical reactions in condensed phases and interfaces and charge transfer processes in such environments.

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2018 Teaching Award Recipients Announced

Steven J. Fluharty, Dean of Penn Arts and Sciences, and Paul Sniegowski, Stephen A. Levin Family Dean of the College of Arts and Sciences, have announced the recipients of the 2018 awards for distinguished teaching in the School.

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College Graduation Speakers for 2018 Revealed

Angela Duckworth, G’03, GR’06, Christopher H. Browne Distinguished Professor of Psychology, will address the Class of 2018 at the graduation ceremony for the College of Arts and Sciences on Sunday, May 13, 2018. She will be joined by student speaker Helena von Nagy, C’18.

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Individualized Care Will Become the Standard for Depression Patients

In a new paper for the Annual Review of Clinical Psychology, researchers Robert DeRubeis, Samuel H. Preston Term Professor in the Social Sciences, and Zachary Cohen of Psychology, address precision medicine, also known as customized-care, in the context of treatment for depression.

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Restoring Vacant Lots Reduces Gun Violence and Crime

In cities across the U.S., about 15 percent of land is considered vacant or abandoned. These areas can foster criminal activity, and urban residents, especially those in low-income neighborhoods, often view vacant land as a threat to their health and safety.

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Robert DeRubeis: Samuel H. Preston Term Professor in the Social Sciences

Professor of Psychology Robert DeRubeis has been named the Samuel H.

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