The Conversation

Environmental protection laws still apply even under Trump’s national energy emergency − here’s why

Written by Albert C. Lin, Professor of Law, University of California, Davis

Part of the Line 5 pipeline carrying crude oil from Canada to the U.S. runs underwater in the Straits of Mackinac, between two of the Great Lakes.Michigan Department of Environment, Great Lakes, and Energy via AP

In response to President Donald Trump’s declaration of a “national energy emergency,” the U.S. Army Corps of Engineers...

Are Ukrainians ready for ceasefire and concessions? Here’s what the polls say

Written by Gerard Toal, Professor of Government and International Affairs, Virginia Tech

After three years of conflict, a majority of Ukrainians report being war-weary.Tetiana Dzhafarova/AFP via Getty Images.

A U.S.-Ukraine accord on a ceasefire proposal has put the notion of a negotiated end to the three-year war on the agenda, and in the hands of Russian President Vladimir Putin.

But even before Moscow responds, it’s pretty...

Philly Roller Derby league turns 20 - here’s how the sport skated its way to feminism, anti-racism and queer liberation

Written by Colleen English, Associate Professor of Kinesiology, Penn State

Early members of Philly's roller derby league face off in a match circa 2005-2006.Jeff Fusco/The Conversation U.S., CC BY-ND

For 20 years, Philly Roller Derby skaters, who go by names like Woolly Slammoth, TrailBlazeHer and Reba Smackentire, have jammed and blocked their way around oval skating rinks in the spirit of feminism, anti-racism, body...

How an unexpected observation, a 10th-century recipe and an explorer’s encounter with a cabbage thief upend what we know about collard greens’ journey to the American South

Written by Bronwen Powell, Associate Professor of Geography, African Studies and Anthropology, Penn State

Collard greens − a staple of diets across the African diaspora.Bronwen Powell/Abderrahim Ouarghidi, CC BY

For generations, collard greens have formed an important part of African and African-diaspora diets around the world.

The leafy vegetable is a quintessential part of African American, Southern and “soul” foods in the United...

I study refugees, and here are the facts on the history and impact of refugee resettlement in the US

Written by Tazreena Sajjad, Senior Professorial Lecturer of Global Governance, Politics and Security, American University School of International Service

Borders: closed.Anton Petrus/Moment via Getty

Refugees haven’t been welcome in the United States since the first day of President Donald Trump’s second term, when he signed an executive order suspending the U.S. Refugee Admissions Program for 90 days. Despite a February 2025 federal court order to resume refugee resettlement, the...

You’ve likely heard the Serenity Prayer − but not its backstory

Written by Scott Paeth, Professor of Religious Studies, DePaul University

It may be timeless wisdom, but the prayer itself isn't ancient.Roy Morsch/The Image Bank via Getty Images

I’m not sure when I first encountered the Serenity Prayer, or when it first occurred to me to ask who wrote it. For much of my life it never occurred to me that prayers were the kind of things that people actually wrote down, especially...

3D printing will help space pioneers make homes, tools and other stuff they need to colonize the Moon and Mars

Written by Sven Bilén, Professor of Engineering Design, Electrical Engineering and Aerospace Engineering, Penn State

3D printing could make many of the components for future structures on Mars.3000ad/iStock via Getty Images Plus

Throughout history, when pioneers set out across uncharted territory to settle in distant lands, they carried with them only the essentials: tools, seeds and clothing. Anything else would have to come from their new environment.

So they...

Can the Trump administration legally deport Palestinian rights advocate Mahmoud Khalil? 3 things to know about green card holders’ rights

Written by Gabriel J. Chin, Professor of Criminal Law, Immigration, and Race and Law, University of California, Davis

Mahmoud Khalil, center, a permanent resident facing deportation, speaks at a press conference organized by Palestinian rights protesters at Columbia University in New York City on June 1, 2024. Selcuk Acar/Anadolu via Getty Images

Secretary of State Marco Rubio has said that the government will deport lawful permanent residents who support Hamas...

America’s clean air rules have boosted health and the economy − here’s what EPA’s deregulation spree ignores

Written by Richard E. Peltier, Professor of Environmental Health Sciences, UMass Amherst

Regulations have cleaned up cars, power plants and factories, leaving cleaner air while economies have grown. AP Photo/Frank Franklin II

The Trump administration announced on March 12, 2025, that it is “reconsidering” more than 30 air pollution regulations in a series of moves that could impact air quality across the United States.

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America’s clean air rules boost health and the economy − here’s what EPA’s new deregulation plans ignore

Written by Richard E. Peltier, Professor of Environmental Health Sciences, UMass Amherst

Regulations have cleaned up cars, power plants and factories, leaving cleaner air while economies have grown. AP Photo/Frank Franklin II

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