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How On Earth is a 25-minute news magazine about science, environment, technology, and more. The show is produced by volunteers at KGNU community radio in the Boulder-Denver area. We collect fascinating science headlines from around the world, produce features about the exciting research being done in our region, and interview the many accomplished scientists that make Colorado their home. How On Earth is also broadcast live at 8:35am (Mountain Time) every Tuesday morning in the Boulder-Denver area on KGNU: 88.5 FM / 1390 AM / Streaming on KGNU.org
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In this week’s show, Beth speaks with author and evolutionary biologist, Rowan Hooper, discussing the themes and examples of symbiosis from his current book, Togetherness: Symbiosis and the Hidden Story of Life’s Greatest Collaborations. He explored the history of study of symbiosis, as well as wonderful stories illustrating this complex phenomenon. And, he went beyond … Continue reading "Symbiosis – Maybe We Are All Living Together"
CU Boulder Computer Scientist Aaron Clauset says military leaders frequently underestimate the ultimate length and size of a war. Clauset offers a new way to measure wars, not just by counting deaths at a war’s end – his research shows how death rates change, throughout a war. This provides insights into what causes wars to … Continue reading "Measuring War: Aaron Clauset"
Forests Vanishing in Wake of Megafires (start time: 7:55) Increasingly large and hot wildfires are turning many conifer-dominated forests in the western U.S.and Canada into shrublands or grasslands, largely by making it impossible for ponderosa and other pines to reseed themselves. The stakes are high, for flora and wildlife, as well as humans. For instance, … Continue reading "How Megafires are Transforming Conifer Forests"
Teaching through screens is part of getting kids ready for the digital world. But when do tech and screens help students and when do they get in the way? CU-Boulder Journalism Student Juliana Krigsman explores these questions with teachers, with Boulder Valley School District’s Academic Services Director Lynn Gershman, and with CU-Boulder Psychology and Neuroscience … Continue reading "Screens & Tech Safety . . . in Schools"
Climate “hushing” (start time: 5:41) Since President Trump began his second term as president in January, 2025, his administration, at a dizzying pace, has attacked climate change as a Democratic elite “hoax” and gutted federal funding for climate-related research and institutions. Partly in response to these attacks, and in an attempt to appeal to more … Continue reading "Moving Beyond Climate “Hushing”"
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