Energy Policy

The bullet train turns 60

In both Asia and Europe, high-speed rail knits regions, countries, and continents together. What will it take to see more rail infrastructure in the U.S.?

Kristina García

Will America’s clean car policies persist?

Four ambitious clean-car policies are driving a major transformation in the United States. Will they survive legal and political threats?

From Kleinman Center for Energy Policy

Weitzman’s Sanya Carley on energy justice

The Presidential Distinguished Professor of Energy Policy and City Planning believes that energy justice should be a central part of America’s energy transition.

From the Weitzman School of Design

COP28 takeaways

Perry World House Fellows and Advisors Lolita Jackson, Stephen Hammer, and Wolfgang Blau offered their insights from the conference in a discussion last week, moderated by Perry World House Interim Director Michael Weisberg.

Kristen de Groot

A path to achieve a net-zero greenhouse gas economy

A new report co-authored by scientists at Penn’s Kleinman Center and Penn Engineering charts a path for the U.S. to achieve a net-zero greenhouse gas economy by 2050.

From Kleinman Center for Energy Policy



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 Inquirer

Decoding Trump’s climate priorities—or lack thereof

In an opinion essay, Sanya Carley of the Kleinman Center for Energy Policy at the Weitzman School of Design examines the implications and possibilities of Donald Trump’s energy and climate agenda.

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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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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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Associated Press

California air regulators approve changes to climate program that could raise gas prices

Danny Cullenward of the Kleinman Center for Energy Policy at the Weitzman School of Design says that many things being credited in California’s new climate program don’t help the climate.

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The Guardian

Corporations using ‘ineffectual’ carbon offsets are slowing path to ‘real zero’, more than 60 climate scientists say

Michael Mann of the School of Arts & Sciences signed a pledge asserting that corporate carbon offsets are ineffectual and hinder the energy transition.

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