KGNU - How On Earth
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KGNU - How On Earth
The KGNU Science Show
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Plastics: Health Risks & Solutions
Microplastics: Health Concerns, Solutions (start time: 6:02) The Environmental Protection Agency recently issued a new rule related to monitoring 30...
Poking the Squid – What We Can Learn from Animal Sex
Poking the Squid – Good Reads calls author and illustrator Perrin Roosevelt Ireland’s new book a brilliantly funny, beautifully illustrated graphic n...
Childrearing Tips (and Cautionary Tales) From the Animal Kingdom
Parenting Across the Animal Kingdom (start time: 5:02) As humans, we tend to think that we raise our children with more care than any other animal on...
Kyle Datta – Energy Security, War & Renewable Energy
Global conflicts are revealing vulnerabilities in the global reliance on imported fossil fuels and centralized power. Energy Analyst Kyle Datta says...
Hidden Nations of Animals
Complex Animal Networks (start time: 7:17) As humans, we’re all familiar with, as we live in and are members of, nations. But most of us don’t think o...
Climate Change: Perils and Progress
Climate Change & Action: From the Arctic to Colorado (start time: 2:33) Twenty years ago the Academy-winning documentary An Inconvenient Truth was rel...
Silent Sky // Gold Lab Symposium
Protest It, Respect It, Defend It, Use It (starts 1:00) Friday at Denver Patagonia and Saturday at Boulder Patagonia environmental activists Annie Le...
A Longer Healthier Life
On this week’s How on Earth, Beth speaks with author, psychologist, and aging explorer Alan Carpenter to discuss the paradigm shift on aging he espous...
The Loneliness Epidemic – CSU Researcher Natalie Pennington
The Loneliness Epidemic – Social media fuels extra risk. Especially vulnerable are people undergoing transitions . . . such as college students, who...
Forest as Superorganism: What it means to Clearcut.
On this week’s How on Earth, Beth speaks with Suzanne Simard, professor and researcher at the University of British Columbia, about her book, WHEN THE...
Buy Now Pay Later – Enticement or Addiction?
Buy Now Pay Later – is this lending service simply enticing, or is it addictive? For the GenZ 20 somethings that are its biggest users, is Buy Now Pa...
Women’s Health Pt. III: Menopause & the Brain
The Brain on Menopause (start time: 01:24) In this week’s show, we offer the finale of our three-part series on menopause and women’s health. We focus...
A Brain Circuit That Switches Acute to Chronic Pain
On this week’s How on Earth, Beth talks with neuroscientist and chronic pain researcher Jayson Ball. He recently completed a study of a novel brain ci...
Conserving Imperiled Prairie Dogs, Raptors & Their Grasslands
Preserving prairie dog+raptor ecosystem (start time: 5:03) Spring has just begun, even if winter hardly visited Colorado. On the plains, prairie dog...
Pollinator Power & Precarity
The Power of Precarity of Pollinators (start time: 8:01) This extremely warm winter in Colorado has delivered early spring blooms, and thus early appe...
The Scale of the Universe
How big is the universe – not just in the scale of distance but also the scale of time? What do those…astronomical…scales mean about us humans on Ea...
Winter Recreation in a Warmer World
On this week’s How on Earth, we hear from a climate scientist about the implications of our changing weather patterns for winter recreation. It’s a wa...
What do Grasslands Have to do with Climate Change?
We hear an interview aired by our sister community radio station’s, Science MOAB. Ecologist Brooke Osborne talks about how dryland ecosystems – such a...
Women’s Health Pt. II: Heart Health
Truths & Tips About Women’s Heart Health (start time: 7:33) February is American Hearth Month, a nationwide observation spotlighting cardiovascular...
Women’s Health Pt. I: Menopause, etc.
New Rules of Women’s Health (start time: 6:26) If you’re female, you may have come of age reading the landmark feminist health book Our Bodies, Oursel...
Hepatitis B Vaccination: Just the Facts
On today’s science show we hear from vaccine researchers Rochelle Walensky and Angela Ulrich, and physician/scientist Peyton Thompson, about the safet...
Water Your Winter Trees
Water your trees! This warm, dry winter means urban trees need extra water to stay healthy. City of Boulder foresters Patrick LaPhilliph and Andrew...
Improving Law Enforcement Behavior through Artificial Intelligence
We speak with experts about how artificial intelligence combined with Police Body Camera footage improved professionalism in the Aurora Colorado Polic...
Colorado’s Wildlife Action Plan, etc.: Pt. II
Protecting Wolves, ferrets, prairie dogs, vultures, etc. (start time: 3:39) How effective are Colorado’s efforts to preserve vulnerable species – wolv...
Colorado’s Wildlife Action plan: Pt. I
Wolves, bears, prairie dogs and more (start time: 7:12) A couple of months ago, the Colorado Parks and Wildlife agency released a plan to support biod...
Coral: Past, Present, Future
In this week’s show Beth speaks with science writer, educator, and scientist Dr. Lisa Gardiner about her recent book Reefs of Time: What Fossils Revea...
Wind: It’s Past & Future
The Force of Wind (start time: 7:10) For those living here on Colorado’s Front Range, you’ve likely had close encounters with wind — whether you’ve w...
World Domination…by Slime Molds?
On today’s show, Beth speaks with award-winning science writer Jennifer Frazer about her upcoming book: The Slime Mold’s Guide to World Domination: A...
Critical Earth Minerals Hiding in Plain Sight – Elizabeth Holley
Critical Earth Minerals Hiding in Plain Site – Colorado School of Mines professor Elizabeth Holley shares how the US could break its dependency on c...
Better Steam//CU-Boulder at World Climate Conference
Great Steam . . . from a Heat Pump (starts 1:00) Time Magazine named CSU Engineer Todd Bandhauer one of 2025’s top climate innovators. His heat pum...
Megadroughts Could Cause World Wide Dustbowls — CSU Melinda Smith Explains
Dustbowl Days Today (starts 5:00) Colorado State University grasslands scientist Melinda Smith explains the study she conducted with the grassroots h...
Winter is Coming: Why Leaves Fall
The physiology of deciduous trees (start time: 11:09) For many people living in places with four distinct seasons, such as here in Colorado, a favorit...
Peak Performance: Revisiting a Classic
Five years ago, Beth spoke with Dr Marc Bubbs about his best-selling hardcover book, PEAK: THE NEW SCIENCE OF ATHLETIC PERFORMANCE. Since then, Bubbs...
Into The Unknown (Part 2)
Into The Unknown (starts at 9:05) What do we know about the universe, and how do we know we know it? Conversely, what do we know we don’t know, what d...
Into The Unknown (Part 1)
Into The Unknown (starts at 7:57) What do we know about the universe, and how do we know we know it? Conversely, what do we know we don’t know, what d...
Autumn Insects and their Songs
Science & Songs of Katydids, Cicadas, etc. (start time: 3:08) It’s the time of year to savor listening each night to the pulsating and clicking sound...
From Habitat Loss to Repairing Connectivity
Helping Wild Animals Roam (start time: 3:29) Wild animals, whether buffalos or bats, need space to move around–not just to survive, but to forage, ...
Science Journalism with Miles O’Brien // Acetaminophen and Autism
This episode features Miles O’Brien, a science journalist who has been a correspondent for PBS News and CNN. He talks about his experience breaking in...
What About All Those Body Products We Buy?
On this week’s How On Earth, Beth spoke with two cosmetic chemists, hosts of the podcast The Beauty Brains. We touched on some basic questions I have...
Menopause, Hormone Therapy, Science
Menopause & HT (start time: 0:58) It happens to every woman with a uterus who reaches midlife. Menopause is a major hormonal transition that, althou...