Sustainability

How consumers and retailers can reduce returns

Wharton’s Gad Allon looks at how both retailers and consumers alike can improve the reverse supply chain and increase awareness of the toll that a massive rate of returns takes.

From Knowledge at Wharton

‘The climate girl’ at Penn

In a Q&A with Xiye Bastida, the second year describes how she’s bringing climate activism to her college experience, how her Indigenous background influences her path, and why storytelling and protecting Earth go hand in hand.

Michele W. Berger

Learn, reflect, and act during Climate Week

Climate Week at Penn, sponsored by the Provost’s Office, offers a variety of events—both in-person and online—that invite the whole University community to learn about, reflect on, and address the climate crisis.

Katherine Unger Baillie

New ways to reduce waste on campus

Reusable food containers, a new program to recycle flexible plastics, and mask and glove recycling are among the ways that Penn is helping members of the community keep the environment in mind this year.

Katherine Unger Baillie

The stories trees tell

In a photo essay, Penn Today highlights some of campus’s most iconic trees.

Katherine Unger Baillie



In the News


Inside Climate News

As California pushes increased ethanol use, experts sound the alarm on environmental impacts

Danny Cullenward of the Kleinman Center for Energy Policy at the Weitzman School of Design says that the negative impacts of biofuels on land are difficult to overstate.

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Philadelphia Citizen

Penn bets big on green

Penn’s Climate and Sustainability Action Plan outlines the University’s efforts to combat climate change during the next five years.

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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 Wall Street Journal

How can we remove carbon from the air? Here are a few ideas

Jennifer Wilcox of the School of Engineering and Applied Science and Kleinman Center for Energy Policy at the Weitzman School of Design says that the carbon-removal potential of forestation can’t always be reliably measured in terms of how much removal and for how long.

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