Earth and Environmental Science

The Clean Water Act at 50

Approaching the half-century mark of this landmark piece of environmental legislation, Penn students, staff, and faculty share their reflections on its legacy, both strengths and shortcomings.

Katherine Unger Baillie

Lead toxicity risk factors in Philadelphia

Two studies identify factors that correlate with high blood-lead levels in children, pointing to ongoing environmental justice issues that disproportionately fall on children of color and poorer communities in the city.

Katherine Unger Baillie

Talking energy at Penn

Energy Week 2022, hosted by the Kleinman Center for Energy Policy and the Vagelos Institute for Energy Science and Technology, runs April 4-8. It includes student presentations, along with conversations about renewables, energy and the war in Ukraine, and much more.

Michele W. Berger , Lindsey Samahon

Decoding a material’s ‘memory’

A new study details the relationship between particle structure and flow in disordered materials, insights that can be used to understand systems ranging from mudslides to biofilms.

Erica K. Brockmeier

Climate scientist Michael Mann to join Penn faculty

Mann is the first new faculty member to be recruited as part of the recently announced Energy and Sustainability Initiative as a Presidential Distinguished Professor in the Department of Earth and Environmental Science.

Katherine Unger Baillie



In the News


WHYY (Philadelphia)

Climate policy under a second Trump presidency

Michael Mann of the School of Arts & Sciences discusses how much a president can do or undo when it comes to environmental policy.

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Salon.com

Exxon CEO wants Trump to stay in Paris climate accord

Michael Mann of the School of Arts & Sciences voices his concern about the possibility that the U.S. could become a petrostate.

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Associated Press

Amid Earth’s heat records, scientists report another bump upward in annual carbon emissions

Michael Mann of the School of Arts & Sciences says that total carbon emissions including fossil fuel pollution and land use changes such as deforestation are basically flat because land emissions are declining.

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The Independent

Climate scientists fear Trump will destroy progress in his second term – and the outcome could be ‘grim’

Michael Mann of the School of Arts & Sciences says that a second Trump term and the implementation of Project 2025 represents the end of climate action in this decade.

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NBC News

Special mud rubbed on all MLB baseballs has unique, ‘magical’ properties, study finds

A study by Douglas Jerolmack of the School of Arts & Sciences and School of Engineering and Applied Science and colleagues has uncovered the mechanical properties of the mud used to coat Major League baseballs.

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The New York Times

The science that makes baseball mud ‘magical’

A study by Douglas Jerolmack of the School of Arts & Sciences and School of Engineering and Applied Science and colleagues has uncovered the mechanical properties of the mud used to coat Major League baseballs, with additional remarks from postdoc Shravan Pradeep and Paulo Arratia.

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