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A conversation with the 2025 World Food Prize Laureate

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River to River, hosted by Ben Kieffer

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.

Guests:

  • Mariangela Hungria, 2025 World Food Prize Laureate, professor of microbiology and biotechnology, University of Londrina
Ben Kieffer is the host of "River to River." Since 2007, Kieffer has interviewed, conversed with, and shared ideas from guests of all backgrounds and locations, and has helped listeners better understand, appreciate, and explore their state and the world around them. Kieffer has a bachelor's degree from the University of Iowa.
Dani Gehr is a talk show producer for Iowa Public Radio. She holds a bachelor's degree from Iowa State University. Since 2022, Gehr has worked with IPR's talk team to bring news and features to IPR's listening audience.
Zoe Bentler is a 2025 fall intern with IPR's talk show team and a senior at the University of Iowa studying journalism and sport, media and culture with a minor in dance. She is originally from Mount Pleasant, Iowa. Her favorite things include keeping up with the current fashion world and cheering on the Iowa Hawkeye sports teams.