River to River

Brazilian microbiologist Mariangela Hungria was told she could never make a career researching environmental agriculture practices. Today, she is the 2025 World Food Prize Laureate. She joins the show to discuss how her groundbreaking research in soil microbiology and biological nitrogen fixation has transformed global agriculture. Hungria shares the impact her science-loving grandmother had on her life and explains how science and sustainability can coexist to feed the planet's growing population. (This episode was originally produced on Oct. 20, 2025)

A war at a volatile tipping point and a "barnburner" race for Iowa's governor. On this Politics Day episode, political scientists Karen Kedrowski and Jim McCormick of Iowa State University join to discuss how the Iran war is raising concerns about the global economy, as well as the Iowa governor's race now being rated a "toss up." Also, President Donald Trump's clashes with the Pope and what that could mean for Catholic voters and why two congressmen — including Iowa native Eric Swalwell, resigned this week.

From the first Iowan U.S. ambassador to Beijing, to Herbert Hoover's fortune in Chinese coal mines, to the soybean's journey from China to Iowa fields — Iowa and China's relationship is older, stranger and more consequential than you might think. Ben Kieffer unpacks the deep and surprising ties between Iowa and China with Iowa State historian Tao Wang and political expert Jonathan Hassid.

Iowa has the second-highest cancer rate in the nation. A recent report points to contaminants in our water, soil and air as key culprits. On this episode, we talk with two of the authors of this report on environmental risk factors including pesticides, PFAS, nitrates and Iowa's cancer crisis. The report offers several policy and personal recommendations to reduce adverse environmental exposures, including expansion of the state's water monitoring network. The Iowa Legislature diverted funds for the Iowa Quality Information System in 2023. While county governments and other groups have helped fund the system the last few years, Iowa Flood Center Director Larry Weber is asking lawmakers to reappropriate funds before the end of this year's session. (The Harkin Institute and Iowa Environmental Council are sponsors of IPR.)

Iowa's hands-free law is now being enforced. On this Newsbuzz edition, what drivers need to know to stay safe and avoid fines. Also, it's crunch time at the Capitol — we check in with 'Des Moines Register' reporter Stephen Gruber-Miller on where key legislation stands. We also hear from IPR's Meghan McKinney about a new law changing foster parent training, and get a planting season preview from Iowa State agronomist Mark Licht as weather swings impact farmers. Plus, an Iowa State researcher explains how artificial intelligence is being used to predict virus evolution before it happens. And we wrap up with groove into the weekend with Nick Brunner.

Cindy Cohn, originally from Newton, Iowa, became one of the country's foremost digital rights lawyers. Her new memoir is titled "Privacy's Defender: My Thirty-Year Fight Against Digital Surveillance." Part legal history, part personal story and part rallying cry, it's front-row account of the legal battles that shaped the internet we use every day. Ahead of her visit to Iowa City, she joins the show the book, growing up in Iowa, your rights online and more

A fragile ceasefire came just hours after a threat to destroy a civilization. On this episode, we examine shifting attitudes toward the war in Iran and what it means for U.S. policy, with insights from political experts Jonathan Hassid and Megan Goldberg. They also break down a federal appeals court decision allowing enforcement of Iowa's book ban law. Plus, how political narratives intersect with major national moments, from the role of Artemis II in shaping presidential legacy and to intensifying Iowa primary races.

Two members of the 'Planet Money' team discuss their new book. Then, a look at how the SAVE America Act could impact elections in Iowa with Dave Peterson, Adam Wedmore and Linda Serra Hagedorn. Guests explain how voter registration would change under the proposed law and what groups would be most impacted.

State legislatures are debating new proposals on immigration policy. On this episode, we take a closer look at immigration bills under consideration in Iowa and our neighboring states and what those proposals could mean for immigrant families and communities. Erin Murphy breaks down the latest from Iowa, while Brenden Moore and Seth Tupper report on what's unfolding in Illinois and South Dakota. Harvest Public Media's Anna Pope also joins to explain how changes to food assistance are affecting immigrant families.

On this Newsbuzz edition, we unpack the headlines from the week, including the latest from the Capitol, funding for rural health, returning to the moon and more.

With spring planting around the corner, Iowa farmers are facing rising costs, global uncertainty, and shifting market pressures. This episode explores how fertilizer prices, international relations and climate conditions are shaping the future of agriculture and rural economies.

Political scientists talk about the top stories of the week, including the historical No Kings protests, Trump's surprise Iran announcement and threats to leave NATO, birthright citizenship at the Supreme Court and more.

The Cancer in Iowa Report published annually by the Iowa Cancer Registry gives an overview of the current burden of cancer in the state. This year's report features findings from the Agricultural Health Study, one of the world's largest and longest-running active studies of agricultural exposures and health. We talk with Iowa Cancer Registry Director Mary Charlton about this year's report which estimates this year that 21,700 Iowans will be diagnosed with cancer and 6,400 Iowans will die of cancer. We'll also talk with principal investigator of the Agricultural Health Study Laura Beane Freeman about the findings from their study that began in the mid-1990s with participants from Iowa and North Carolina. David Cwiertny of the University of Iowa's Center for Health Effects of Environmental Contamination also joins to discuss various environmental factors in the state that may be contributing to cancer diagnoses.

A proposal at the Statehouse would put new limits on the governor's emergency authority. Lawmakers for and against the legislation discuss what's behind this bill. Then, a bill at the Statehouse would bar new employment contracts with H1-B visa holders from certain countries. Later in the episode, we hear about a podcast from Iowa State University Extension and Outreach that explores significant changes farmers have made in their business models. (The third segment of this program was produced in November 2025.)

On this Newsbuzz edition, we break down the latest from the Iowa Statehouse with Marissa Payne of the 'Des Moines Register' and NPR White House correspondent Danielle Kurtzleben joins to discuss how the war against Iran is impacting farmers. We also discuss the Hawkeye men's basketball team's historic run so far during March Madness and the Iowa State men's team with sports writer Mike Hlas. Plus the upcoming severe weather season and federal court rulings on immigration in Iowa.

At this year's Obermann Symposium, University of Iowa researchers are tackling the achievement gap for rural students, unequal access to nutritious food and communities not adapting to an aging population. The symposium is meant to harness the work being done in rural areas to better collaborate. Ben Kieffer speaks with one of the organizers, law professor Daria Fisher Page, and the experts focusing on rural issues; professor of gerontology Brian Kaskie; professor in learning sciences and educational psychology Duhita Mahatmya; and professor of occupational and environmental health Brandi Janssen.

President Trump's war in Iran is raising questions about U.S. foreign policy and its political consequences closer to home. In rural Iowa and across the Midwest, shifting opinions and economic concerns are putting pressure on traditional bases of support. Political scientists Donna Hoffman of the University of Northern Iowa and Wayne Moyer of Grinnell College join the program to analyze how the conflict is shaping voter attitudes, party dynamics and broader regional sentiment.

A new nation, a divided country, a lonely fort in a harbor. Bestselling author Erik Larson will be in Iowa to talk about his latest book, The Demon of Unrest: A Saga of Hubris, Heartbreak, and Heroism at the Dawn of the Civil War. He joined the show ahead of his visit. Then, we hear firsthand accounts from two Iowans, Mary Sellers and Susan Judkins, who just returned from Cuba amid tensions with the U.S. and the energy crisis.

Iowa's second funnel deadline has passed. What bills are still alive, and what does it all mean for the rest of the legislative session? Today, statehouse reporters Katarina Sostaric of IPR, Stephen Gruber-Miller of the 'Des Moines Register', and Erin Murphy of 'The Gazette' join to break it all down. The conversation covers the biggest unresolved issues shaping the session, including competing property tax proposals, ongoing debates over eminent domain and carbon pipelines, and concerns about a projected budget deficit. The group also discusses key developments in education policy, criminal justice, and health care.

Jie Li, an Iowa State researcher originally from China, shares the harm a state bill targeting H-1B applicants from "foreign adversary" nations could cause. Also, updates after the second major deadline at the Statehouse and a major environmental group signaling cautious support for restarting Iowa's shuttered nuclear power plant.

A majority of U.S. teens say they use AI chatbots for school work, according to the Pew Research Center. On this episode we talk with Iowa educators who are working together in advancing ethical, human-centered approaches to artificial intelligence across K-12 education. Then — a recent report that shares of the potential negative risks that generative AI poses to students.

After the filing deadline, Auditor Rob Sand is the sole Democrat still in the race for governor. On this Politics Day, Caufield of Drake University and Jim McCormick of Iowa State analyze the gubernatorial race, rifts in the MAGA movement over the war in Iran and a legal challenge to Iowa's food stamp rules.

Iowa's environment and public health are under stress. IPR's Natalie Krebs discusses the basics of the new Cancer in Iowa Report, and Jason Clayworth of Axios Des Moines talks about the state's impaired waters. After that, a new study examines how the U.S. investigates deaths in custody. Forensic pathologist Dr. Roger Mitchell, President of the National Medical Association, discusses the study's findings and recommendations. Finally, a conversation with the new president of Iowa State University, David Cook.

If you're charged with a crime in Iowa and the charges are dropped, should you still get the bill for your public defender? The Iowa Supreme Court recently said no, but a bill could reverse that decision. Also, our indigent defense fund contributed to legal deserts in the state, a University of Iowa researcher says. Then, the executive director of the Iowa County Attorney Association says the issue of prosecutor shortages is being overlooked.

William Morris of the Des Moines Register shares the legal risks of using artificial intelligence in court cases and why attorneys warn it could expose sensitive information. Also on this Newsbuzz edition: Marissa Payne of the Des Moines Register gives an update on activity at the Iowa Statehouse; Grace Nieland of The Gazette explains how data center construction is reshaping housing demand in Cedar Rapids; and Kevin Baskins of the Des Moines Register discusses Iowa's latest economic competitiveness report. Later, Kate Grumke of Harvest Public Media shares how scientists are studying engineered algae that could help remove microplastics from waterways. State Climatologist Justin Glisan joins the show to talk about Iowa's recent wind patterns, and Studio One host Tressa Glass wraps up the week with new music picks.

Many Midwest residents distrust their tap water, opting to purchase water and ice from standalone kiosks. University of Iowa researchers recently found that these kiosks may contain at least trace amounts of lead. Rachel Schnelle investigated this research on behalf of the Midwest Newsroom. We talk with her and two University of Iowa researchers behind this study that sampled many kiosks around Iowa.

The Iran War is reshaping the Middle East. ISU's Jonathan Hassid and Kelly Winfrey discuss the war and how it's reshaping the way we talk, think and argue about war itself. They also discuss a bill barring local civil rights protections that was signed by Gov. Kim Reynolds and the SAVE Act.

Over a week into the U.S.-Israel war against Iran, two Iranian-born Iowans give their differing perspectives on military intervention in the Middle East. Then, a conversation with the vice president of the Iowa chapter of Blue Star Mothers of America, a nonprofit organization that provides support to fellow military families, veterans and gold star families.

Iowa House Republicans recently passed what they call a "tough on crime" package. The package is made up of three bills — a "three strikes" sentencing law, new rules for how judges set bail and a public dashboard tracking what happens inside Iowa's courtrooms. Iowa House Republicans say this legislation will crack down on crime and make Iowans safer. Opponents argue the bills could overcrowd state prisons and burden taxpayers. On this episode, lawmakers and a defense attorney discuss the package and its potential impact.

On this Newsbuzz edition of River to River, a conversation with Brian Katulis of the Middle East Institute about this week's developments on the United States and Israel's war with Iran which has included the deaths of six U.S. service members, including two Iowans. Also, IPR reporter James Kelley discusses Google's change of plans for a proposed data center in Linn County, Robin Opsahl of Iowa Capital Dispatch gives an update on this week's activity at the statehouse and Studio One's Nick Brunner shares this week's new music picks.

For years, the Iowa State Patrol has set a goal of keeping traffic deaths below 300. In 2025, they not only met that goal, but had the fewest fatalities since 1925 at 259. We discuss some of the factors that have led to this decrease, including the hands-free driving law that took effect July 2025, with full enforcement beginning in January. We also learn about Alive at 25, a safety initiative launched by the Iowa Department of Transportation last fall to improve driving behavior among the state's youngest drivers. (This show was originally produced Jan. 8, 2026.)

An Iowa soldier killed. A war in its fifth day. This episode, analysis of the U.S.-Israel war on Iran — and Congressional moves to check the president. Political scientists Jim McCormick and Kelly Shaw join the program to discuss these developments.

Marketplace's Kai Ryssdal joins Ben Kieffer for a wide-ranging conversation on the U.S. economy and Ryssdal's career. (This episode was originally produced in November 2025.)

Active bills at the Iowa Statehouse involving public libraries and public assistance programs are the focus of this Legislative Monday episode. First, Sam Helmick, shares their perspective on proposals that would impact public libraries as president of the American Library Association. Then, Rep. Heather Matson, D-Ankeny and Rep. Helena Hayes, R-New Sharon, share their differing perspectives on library bills. Then, Rep. Ross Wilburn, D-Ames, and Rep. Austin Harris, R-Moulton, discuss proposed changes to SNAP and WIC. We also hear from Paige Chickering, vice chair of the Iowa Hunger Coalition.

University of Iowa surgeon Dr. Ramy El-Diwany performed the first robotic living donor nephrectomy, which will lead to more precise surgeries and quicker recovery for kidney donors. UIHC hopes this will mean more living kidney donations. On this News Buzz edition, Ben Kieffer speaks with Dr. El-Diwany, but first, we get a legislative update from Statehouse reporter Katarina Sostaric, Clark Kauffman shares a recent First Amendment case in Newton, and we meet one of the Coralville residents who organized against the city's recently rescinded AI-camera contract.

One of the New York Times' 10 best books of 2025, Angel Down is a World War I story told as one continuous sentence, which vividly portrays the horrors of that conflict. Author Daniel Kraus is no stranger to horror. Growing up in Fairfield, he would watch horror movies like Night of the Living Dead and episodes of The Twilight Zone as a five year old with his mom. Kraus joins this episode to talk about his horror and Iowa roots, Angel Down, which is development for a film adaptation, and his 2023 novel Whalefall, whose film adaptation is to be released later this fall.

On this Politics Day, political experts analyze President Donald Trump's State of the Union Address and national Democrats' decision to pay special attention to two Iowa Congressional races.

A new study says Iowa's bet on renewable energy is paying off. The Director of Policy and Research at the Common Sense Institute shares their new research on the economic impact of renewable energy in Iowa. We also explore obstacles to wind power projects in Iowa and what that all means for Iowa's future, as a pioneer in wind energy. Then we remember Billie Ray, the beloved former first lady of Iowa, who died last week at age 97.

The Statehouse funneled down bills being considered last week with their first major deadline. Reporters Erin Murphy, Katarina Sostaric and Robin Opsahl share the bills that are still alive — from expanding a ban on LGBTQ+ topics in schools to limiting the governor's power — and those that died.

On this Newsbuzz edition, host Ben Kieffer speaks with guess and journalists from around Iowa about the news of the week, including the first funnel deadline at the Statehouse, how Iowa libraries became political lightning rods, the risks of lead in hunting, funding of the 988 crisis line and more.

A report published this week by Investigate Midwest dives into the connection between pesticide use and rising cases of cancer for those in farming communities nationwide. Editor in Chief Ben Felder details the findings, and we hear from two Iowans that recently fought cancer who are featured in the article. Later in the episode, Luther College junior Mansur Kasali led a student initiative focused on making the federal budget and national debt a matter of shared civic responsibility, rather than abstract politics.

A look at the top political stories of the week, including library and abortion bills in Iowa, the primary race for Senate and the death of Rev. Jesse Jackson. Political scientists Karen Kedrowski and Jim McCormick of Iowa State University offer their analysis on the recent headlines.