KGNU - How On Earth

152 episodes listed below

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Science reporting with Colorado ground truth.

The gist

KGNU - How On Earth brings science reporting into a local public-radio frame, moving from headlines into interviews with researchers, journalists, conservation voices, and health specialists. Its recent range runs from chronic pain neuroscience and menopause research to grassland ecology, pollinators, prairie dogs, and consumer behavior.

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About KGNU - How On Earth

KGNU - How On Earth is a community-radio science program built around evidence, explanation, and local consequence. It has the feel of a news magazine, but its strongest recent episodes linger where science touches ordinary decisions and public systems. A segment on Buy Now, Pay Later connects consumer finance to reward pathways, online shopping, and debt risk. A women’s health conversation follows menopause research into childhood adversity, stress, cognition, inflammatory markers, and behavioral-health studies. The neuroscience coverage can get concrete fast. In an episode on chronic pain, Jason Ball describes brain pathways, sensory processing, and experimental methods in plain enough language for a general audience. The environmental side is equally grounded. Recent conversations look at prairie dogs, raptors, burrowing owls, bald eagles, development pressure, agriculture, energy infrastructure, and grassland habitat. Pollinators are treated as more than garden charm; they are linked to food production, cattle forage, biodiversity, pesticides, and planetary health. Climate appears through dryland science and grasslands rather than only through broad policy language. The show also keeps a close eye on science communication itself, including an episode featuring Miles O’Brien and reporting on acetaminophen claims during pregnancy. What holds the range together is method. The program asks what researchers know, how they know it, what remains complicated, and where listeners can find more. Its register is measured and accessible, with public-radio signposting and enough technical vocabulary to respect the subject. The Colorado frame gives the show a practical edge. Local researchers, conservation groups, and Front Range concerns recur across the excerpts. KGNU - How On Earth suits discovery because each episode offers a self-contained doorway into a larger question: health, land, climate, money, evidence, or the living systems nearby.

Made for: Suits a listener who wants science explained through health, ecology, public evidence, and local consequence. It fits people who like careful public-radio pacing more than hot takes.

What sets it apart: The show’s distinction is its blend of science-news framing, researcher interviews, and Colorado-specific environmental reporting. It connects mechanisms to lived effects without turning complex evidence into simple certainty.

In their own words

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

climate and grasslandsColorado conservationpollinators and food systemsneuroscience and chronic painwomen’s health and menopausescience journalismconsumer behavior and addictionpublic health evidence

Talks about

Best episodes of KGNU - How On Earth

Short reviews from the PlayNext desk, based on the episodes we processed.

Buy Now Pay Later – Enticement or Addiction?Apr 14, 2026

Tiny payments hide a bigger psychological bill.

The episode treats Buy Now, Pay Later as a psychological lure assembled from small visual cues: the black arrows, the black capital K, the promise of $10 a month, and the way those tiny steps can make a $300 dress feel almost harmless.

Women’s Health Pt. III: Menopause & the BrainApr 7, 2026

Menopause is framed through brain health, childhood stress, and research on ACEs.

This episode treats menopause as a brain-health story, bringing Dr. Christina Metcalf and the hosts into a discussion of how childhood stress and trauma may shape later symptoms.

A Brain Circuit That Switches Acute to Chronic PainMar 31, 2026

A careful look at the circuitry that helps pain become chronic.

How on Earth opens by linking stress, eczema, and chronic pain, then follows recent CU PhD grad and neuroscientist Jason Ball as he explains new work on a brain circuit tied to chronic pain.

Conserving Imperiled Prairie Dogs, Raptors & Their GrasslandsMar 24, 2026

A Colorado grassland discussion tying prairie dogs, raptors, and the pressures reshaping their habitat.

How on Earth begins with a quick look back at Jonas Salk and the polio vaccine before turning to Colorado grasslands and the animals that depend on them, including prairie dogs, owls, eagles, and ferrets. Joel Parker and Susan Moran bring in Dr.

Podcasts like KGNU - How On Earth

Episodes

  1. 1

    The Tumor Microbiome Can Affect Cancer Survival

    ·27m
  2. 2

    A Brain Circuit That Switches Acute to Chronic Pain

    ·28m
  3. 3

    Conserving Imperiled Prairie Dogs, Raptors & Their Grasslands

    ·27m
  4. 4

    Pollinator Power & Precarity

    ·26m
  5. 5

    The Scale of the Universe

    ·27m
  6. 6

    Winter Recreation in a Warmer World

    ·26m
  7. 7

    De-funding NIST’s Atomic Spectroscopy Group

    ·27m
  8. 8

    The Lucy Mission

    ·27m
  9. 9

    Poisoning the Well: How Forever Chemicals Contaminated America.

    ·27m
  10. 10

    April Foolish Science

    ·27m
  11. 11

    NEPA, Wildlife, Lands Under Threat

    ·26m
  12. 12

    What do Grasslands Have to do with Climate Change?

    ·27m
  13. 13

    Women’s Health Pt. II: Heart Health

    ·24m
  14. 14

    Women’s Health Pt. I: Menopause, etc.

    ·26m
  15. 15

    Water Your Winter Trees

    ·26m
  16. 16

    Improving Law Enforcement Behavior through Artificial Intelligence

    ·27m
  17. 17

    Colorado’s Wildlife Action Plan, etc.: Pt. II

    ·27m
  18. 18

    Colorado’s Wildlife Action plan: Pt. I

    ·27m
  19. 19

    Coral: Past, Present, Future

    ·27m
  20. 20

    Wind: It’s Past & Future

    ·27m
  21. 21

    World Domination…by Slime Molds?

    ·27m
  22. 22

    Critical Earth Minerals Hiding in Plain Sight – Elizabeth Holley

    ·27m
  23. 23

    Better Steam//CU-Boulder at World Climate Conference

    ·27m
  24. 24

    Megadroughts Could Cause World Wide Dustbowls — CSU Melinda Smith Explains

    ·26m
  25. 25

    Winter is Coming: Why Leaves Fall

    ·26m
  26. 26

    Peak Performance: Revisiting a Classic

    ·28m
  27. 27

    Into The Unknown (Part 2)

    ·27m
  28. 28

    Into The Unknown (Part 1)

    ·27m
  29. 29

    Science Journalism with Miles O’Brien // Acetaminophen and Autism

    ·27m
  30. 30

    What About All Those Body Products We Buy?

    ·28m
  31. 31

    Menopause, Hormone Therapy, Science

    ·28m
  32. 32

    The (ever-changing) Scoop on Vaccines

    ·27m
  33. 33

    Climate Change, Astronomy, Canine Astronauts

    ·26m
  34. 34

    Bill McKibben – Here Comes the Sun

    ·27m
  35. 35

    Wildfires in a Changing Climate

    ·27m
  36. 36

    Climate Science, Human Lives at Risk

    ·27m
  37. 37

    The Vera Rubin Observatory

    ·27m
  38. 38

    50 Years of Open Space! // Heart Attack and Stroke Risk from Common Sugar Substitute

    ·27m
  39. 39

    Women’s Health Pt. III: Menopause & the Brain

    ·26m
  40. 40

    Climate Science, Cutbacks, Litigation

    ·26m
  41. 41

    How We Grow Up: Understanding Adolescence by Matt Richtel

    ·27m
  42. 42

    Bird Conservancy of the Rockies – Eric DeFonso

    ·27m
  43. 43

    Viruses are Us!

    ·27m
  44. 44

    2025 Graduation Special (part 2)

    ·27m
  45. 45

    GLP-1 and Blindness

    ·27m
  46. 46

    Animal Pandemics?

    ·28m
  47. 47

    Saving Weather Forecasting, Climate Science

    ·27m
  48. 48

    Birds at Risk

    ·28m
  49. 49

    Boulder Cardiologist Nelson Trujillo – Extended Version

    ·56m
  50. 50

    GoldLab Founder Larry Gold – Extended Interview

    ·45m
  51. 51

    2025 Graduation Special (part 1)

    ·29m
  52. 52

    Mutualism in Nature

    ·27m
  53. 53

    Eight-Legged Wonders: The Surprising Lives of Spiders

    ·27m
  54. 54

    Measles: To Vaccinate or Not?

    ·27m
  55. 55

    This Ordinary Stardust: A Scientist’s Path from Grief to Wonder

    ·26m
  56. 56

    Train Wolves AND Humans to Coexist

    ·27m
  57. 57

    Tom Cech: The Catalyst

    ·27m
  58. 58

    Tackling Landfill Methane Emissions

    ·27m
  59. 59

    How a Soil Bacterium Can Affect Mental and Physical Health

    ·25m
  60. 60

    Decarbonizing Cement Production

    ·28m
  61. 61

    Gang Science – David Pyrooz

    ·24m
  62. 62

    What’s Up with the Polio Vaccine?

    ·26m
  63. 63

    Tackling PFAS, From Wastewater to Tap Water

    ·28m
  64. 64

    Opiate Epidemic Update from 2024

    ·26m
  65. 65

    Science Stories from 2024

    ·27m
  66. 66

    Ibogaine // Ice Cores // Neurospsychologist June Gruber & Awe Walks

    ·27m
  67. 67

    Move Your Body!

    ·26m
  68. 68

    Move Your Body – Extended Version

    ·53m
  69. 69

    Plastic Pollution: Sources, Impacts, Solutions

    ·27m
  70. 70

    Xmas Bird Count

    ·27m
  71. 71

    Cocoa Flavonoids // Science of Happiness

    ·27m
  72. 72

    IF Federal Environmental Protections Go Away . . . EDF Speaks Out.

    ·27m
  73. 73

    Where is Science Going in the Next 4 Years?

    ·24m
  74. 74

    Europa Clipper

    ·27m
  75. 75

    COP16 Biodiversity Conference

    ·27m
  76. 76

    Wildfire Mushrooms for Wildfire Mitigation

    ·26m
  77. 77

    CU Boulder Nobel Prize Winner Tom Cech & “The Catalyst”

    ·28m
  78. 78

    Emotions, Beliefs, Politics

    ·27m
  79. 79

    The Carbon Footprint of Food

    ·28m
  80. 80

    Hoofbeats – Horses & Human History//Colorado Wolf Family ReCaptured

    ·24m
  81. 81

    Colorado Wolves Recapture – Marc Bekoff Extended Interview

    ·52m
  82. 82

    The Emotional Lives of Animals

    ·25m
  83. 83

    SOLO: Building a Remarkable Life of Your Own – Peter McGraw

    ·27m
  84. 84

    Science from The Moon

    ·27m
  85. 85

    Invasive Weed Management in Boulder County

    ·26m
  86. 86

    Why Do Animals Talk?

    ·26m
  87. 87

    Fire Resistant Homes

    ·27m
  88. 88

    Wildfires & Smokey Skies

    ·27m
  89. 89

    Curious Patterns of Chickadees

    ·29m
  90. 90

    Rangeland Restoration – A Science Moab Show

    ·28m
  91. 91

    Our Moon

    ·37m
  92. 92

    “Compostable” Product Truths & Lies

    ·26m
  93. 93

    The Ins and Outs of Cheese

    ·27m
  94. 94

    Green Power for when the Power Goes Out

    ·28m
  95. 95

    The Dirt on Composting

    ·27m
  96. 96

    Why a Parliament of Owls?

    ·27m
  97. 97

    Bees and Other Bugs

    ·27m
  98. 98

    A Brain Circuit That Switches Acute to Chronic Pain

    ·28m
  99. 99

    Women’s Health Pt. III: Menopause & the Brain

    ·26m
  100. 100

    Autumn Insects and their Songs

    A conversation with Tim McNary about katydids and other autumn insects, their songs, and their role in the ecosystem.

    ·27m
  101. 101

    From Habitat Loss to Repairing Connectivity

    Boulder journalist Hilary Rosner discusses her debut book about repairing connectivity in a fractured world.

    ·28m
  102. 102

    Hepatitis B Vaccination: Just the Facts

    An interview with Dr.

    ·26m
  103. 103

    Buy Now Pay Later – Enticement or Addiction?

    This episode explores the neurological and behavioral factors that make Buy Now, Pay Later services enticing and potentially addictive, especially for younger consumers.

    Apr 14, 2026·27m·1 clip
  104. 104

    Women’s Health Pt. III: Menopause & the Brain

    Hidden gem

    KGNU's How On Earth on April 7, 2026 focuses on menopause and the brain, with Susan Moran, Megan Rabbit, and Dr.

    Apr 7, 2026·26m·2 clips
  105. 105

    A Brain Circuit That Switches Acute to Chronic Pain

    Hidden gem

    Chronic pain affects as many as one in five Americans, and Jason Ball says a CU Boulder brain circuit can push pain from acute to chronic.

    Mar 31, 2026·28m·2 clips
  106. 106

    Conserving Imperiled Prairie Dogs, Raptors & Their Grasslands

    Hidden gem

    Prairie dogs are down about 95% from historical levels, and Rich Reading says that loss is collapsing habitat for black-footed ferrets, burrowing owls, ferruginous hawks, and bald eagles.

    Mar 24, 2026·27m·1 clip
  107. 107

    Pollinator Power & Precarity

    Hidden gem

    KGNU’s How On Earth interviews Amy Yarger of the Butterfly Pavilion about pollinators, food production, ecosystem services, pesticides, and climate-related timing shifts.

    Mar 17, 2026·26m·1 clip
  108. 108

    The Scale of the Universe

    Mar 3, 2026·27m
  109. 109

    Winter Recreation in a Warmer World

    Feb 24, 2026·26m
  110. 110

    What do Grasslands Have to do with Climate Change?

    Ecologist Brooke Osborne discusses how grasslands and dryland science can help restore snow and rain in the Rocky Mountain West, followed by news on rare blood clots from COVID-19 vaccines.

    Feb 17, 2026·27m
  111. 111

    Women’s Health Pt. II: Heart Health

    Feb 10, 2026·24m
  112. 112

    Women’s Health Pt. I: Menopause, etc.

    Feb 3, 2026·26m
  113. 113

    Hepatitis B Vaccination: Just the Facts

    Jan 27, 2026·26m
  114. 114

    Water Your Winter Trees

    Jan 20, 2026·26m
  115. 115

    Improving Law Enforcement Behavior through Artificial Intelligence

    Jan 13, 2026·27m
  116. 116

    Colorado’s Wildlife Action Plan, etc.: Pt. II

    Jan 6, 2026·27m
  117. 117

    Colorado’s Wildlife Action plan: Pt. I

    Dec 30, 2025·27m
  118. 118

    Coral: Past, Present, Future

    Dec 22, 2025·27m
  119. 119

    Wind: It’s Past & Future

    Dec 16, 2025·27m
  120. 120

    World Domination…by Slime Molds?

    Dec 9, 2025·27m
  121. 121

    Critical Earth Minerals Hiding in Plain Sight – Elizabeth Holley

    Dec 2, 2025·27m
  122. 122

    Better Steam//CU-Boulder at World Climate Conference

    Nov 25, 2025·27m
  123. 123

    Megadroughts Could Cause World Wide Dustbowls — CSU Melinda Smith Explains

    Nov 18, 2025·26m
  124. 124

    Winter is Coming: Why Leaves Fall

    Nov 11, 2025·26m
  125. 125

    Peak Performance: Revisiting a Classic

    Nov 4, 2025·28m
  126. 126

    Into The Unknown (Part 2)

    Oct 28, 2025·27m
  127. 127

    Into The Unknown (Part 1)

    Oct 21, 2025·27m
  128. 128

    Autumn Insects and their Songs

    Oct 14, 2025·27m
  129. 129

    From Habitat Loss to Repairing Connectivity

    Oct 7, 2025·28m
  130. 130

    Science Journalism with Miles O’Brien // Acetaminophen and Autism

    This episode of How on Earth features a report on the controversy over acetaminophen use during pregnancy and autism, followed by an interview with science journalist Miles O'Brien.

    Sep 30, 2025·27m
  131. 131

    What About All Those Body Products We Buy?

    Sep 23, 2025·28m
  132. 132

    Menopause, Hormone Therapy, Science

    Sep 16, 2025·28m
  133. 133

    The (ever-changing) Scoop on Vaccines

    Sep 8, 2025·27m
  134. 134

    Climate Change, Astronomy, Canine Astronauts

    Sep 2, 2025·26m
  135. 135

    Bill McKibben – Here Comes the Sun

    Aug 26, 2025·27m
  136. 136

    Wildfires in a Changing Climate

    Aug 19, 2025·27m
  137. 137

    Climate Science, Human Lives at Risk

    Aug 12, 2025·27m
  138. 138

    The Vera Rubin Observatory

    Aug 5, 2025·27m
  139. 139

    50 Years of Open Space! // Heart Attack and Stroke Risk from Common Sugar Substitute

    Jul 28, 2025·27m
  140. 140

    The Tumor Microbiome Can Affect Cancer Survival

    Jul 22, 2025·27m
  141. 141

    Climate Science, Cutbacks, Litigation

    Jul 15, 2025·26m
  142. 142

    How We Grow Up: Understanding Adolescence by Matt Richtel

    Jul 9, 2025·27m
  143. 143

    Bird Conservancy of the Rockies – Eric DeFonso

    Jul 1, 2025·27m
  144. 144

    Viruses are Us!

    Jun 24, 2025·27m
  145. 145

    2025 Graduation Special (part 2)

    Jun 17, 2025·27m
  146. 146

    GLP-1 and Blindness

    Jun 10, 2025·27m
  147. 147

    Animal Pandemics?

    Jun 3, 2025·28m
  148. 148

    Saving Weather Forecasting, Climate Science

    May 27, 2025·27m
  149. 149

    Birds at Risk

    May 20, 2025·28m
  150. 150

    GoldLab Founder Larry Gold – Extended Interview

    May 12, 2025·45m
  151. 151

    Boulder Cardiologist Nelson Trujillo – Extended Version

    May 12, 2025·56m
  152. 152

    2025 Graduation Special (part 1)

    May 6, 2025·29m