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Artwork for KGNU - How On Earth

KGNU - How On Earth

KGNU - How On Earth
Climate Change
CU Boulder
Colorado
Bird Conservation
NASA
Greenhouse Gas Emissions
Wolves
Pollinators
PFAS
Ecology
Wildfires
Sustainability
Composting
Methane Emissions
Cement Industry
Federal Funding Cuts
Gold Lab Symposium
Mental Health
Conservation
Boulder County

The KGNU Science Show

PublishesWeeklyEpisodes771Founded15 years ago
Number of ListenersCategories
ScienceNatural SciencesSocial Sciences

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Artwork for KGNU - How On Earth

Latest Episodes

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 of non-human species, be they tiny ants or beavers or bears,  in this context. But Ryan Huling does, ... more

Tromso, Norway

Photo credit: Tom Yulsman

Climate Change & Action: From the Arctic to Colorado (start time: 2:33) Twenty years ago the Academy-winning documentary An Inconvenient Truth was released in theaters nationwide. It sparked millions of people... more

Protest It, Respect It, Defend  It, Use It (starts 1:00) Friday at Denver Patagonia and Saturday at Boulder Patagonia environmental activists Annie Leonard and André Carothers discuss their new book

Silent Sky (starts 2:00) Viva Theater celebrates t... more

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 espouses. Following a life changing accident, he turned his life around by diving into the science of heal... more

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Recent Guests

Dr. Mark Ceres
Director of the National Snow and Ice Data Center
National Snow and Ice Data Center (NSIDC)
Episode: Climate Change: Perils and Progress
Tom Uelsman
Science journalist and former Director of the Center for Environmental Journalism at CU Boulder
CU Boulder, Center for Environmental Journalism
Episode: Climate Change: Perils and Progress
Mandy Leahy
Actress playing Henrietta Leavitt
Theater production Silent Sky at Dairy Arts Center
Episode: Silent Sky // Gold Lab Symposium
Susan Dautremont
Actress playing Annie Jump Cannon
Silent Sky production
Episode: Silent Sky // Gold Lab Symposium
Abby Wright
Viva Theater's artistic director
Viva Theater
Episode: Silent Sky // Gold Lab Symposium
Alan Carpenter
Psychologist turned healthy aging advocate, author of Choose Better, Live Better
Author, psychologist
Episode: A Longer Healthier Life
Boulder, United States
Episode: A Longer Healthier Life
Natalie Pennington
Colorado State University friendship researcher
Colorado State University
Episode: The Loneliness Epidemic – CSU Researcher Natalie Pennington
Mitch Grayson
Immunologist and allergist, Nationwide Children's Hospital
Nationwide Children's Hospital
Episode: Forest as Superorganism: What it means to Clearcut.

Hosts

Susan Moran
Host with long-running involvement across episodes, often co-host/producer and public-facing host.
Joel Parker
Co-host/Host with ongoing involvement across episodes, often delivering scientific context.
Beth Bennett
Host of How On Earth and KGNU Science Show, appears across multiple episodes; often leads discussions on science topics and public education.

Reviews

4.3 out of 5 stars from 29 ratings
  • Awesome Podcast!!!

    Beth, host of the KGNU - How on Earth podcast, highlights all energy, science, climate and more in this can’t miss podcast! The host and expert guests offer insightful advice and information that is helpful to anyone that listens!

    Apple Podcasts
    5
    roweereyes
    Philippines4 years ago
  • Interesting

    This is a very interesting show.

    Apple Podcasts
    5
    Lloydmusic
    Canada9 years ago
  • I don't even live in Colorado and I love this podcast

    I discovered this podcast about 6 months ago and have not only listened to every episode since, I have begun downloaded older episodes and listening. Great variety of topics. Knowledgeable hosts and guests. Professionally done podcast. Highly recommended.

    Apple Podcasts
    5
    Old UNIX guy
    United States9 years ago

Listeners Say

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Deep-dive science topics paired with accessible storytelling.
High-quality guests; informative and accessible.
Engaging mix of science, policy, and real-world impact.

Chart Rankings

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Talking Points

Recent interactions between the hosts and their guests.

The Loneliness Epidemic – CSU Researcher Natalie Pennington
Q: What sparked your interest in loneliness and friendship research?
She traces it back to her freshman year experiences with Facebook and how the concept of 'friend' and social connections sparked her curiosity about what constitutes a meaningful relationship.
Women’s Health Pt. III: Menopause & the Brain
Q: what can listeners do now to support brain health during midlife
Engage in evidence-based stress reduction, maintain heart-healthy behaviors (exercise, healthy eating, manage cholesterol), and seek supportive resources; participate in research studies to advance understanding and potential interventions for menopause-related brain health effects.
Women’s Health Pt. III: Menopause & the Brain
Q: how does cortisol factor into brain aging during menopause
Chronic cortisol exposure, indicated by hair cortisol, is associated with poorer attention and working memory in late perimenopause, while acute salivary cortisol did not show this association, suggesting that long-term stress exposure is more influential on cognitive function during this transition.
Women’s Health Pt. III: Menopause & the Brain
Q: distill the key findings about childhood stress and menopause symptoms and their mechanisms
Childhood adversity can intensify menopause symptoms and depression risk, and is linked to higher inflammatory markers like IL-6. In a longitudinal cohort, women with two or more ACEs showed worse cognitive performance in late perimenopause, related to chronic inflammatory activity and cortisol exposure rather than acute stress markers.
A Brain Circuit That Switches Acute to Chronic Pain
Q: So can you tell us what's going on when acute pain becomes chronic?
The sensory pathway becomes hypersensitized and the brain pathways processing that input stay highly active, with both neurological and inflammatory mechanisms driving the chronic state. The transition is a spectrum where some pain remains useful but can become maladaptive when it outlasts healing.

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Frequently Asked Questions About KGNU - How On Earth

What is KGNU - How On Earth about and what kind of topics does it cover?

The show consistently blends science, environment, and health with accessible storytelling. Episodes frequently explore climate change impacts (from Arctic dynamics to regional water concerns), forest and grassland ecosystems, pollinator health, and the societal dimensions of science—alongside episodes that bring in theatre, indigenous knowledge, and public engagement. A notable strength is the ability to pair expert guests with practical angles (policy implications, conservation actions, and personal perspectives from students and community members), creating a multi-faceted look at how science affects daily life. The format often ties cutting-edge research to real-world questions, making it appealing to listeners who want rigorous context... more

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These podcasts share a similar audience with KGNU - How On Earth:

1. In Our Time
2. Living on Earth
3. The Gray Area with Sean Illing
4. The Great Simplification with Nate Hagens
5. On the Media

How many episodes of KGNU - How On Earth are there?

KGNU - How On Earth launched 15 years ago and published 771 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on KGNU - How On Earth?

Recent guests on KGNU - How On Earth include:

1. Dr. Mark Ceres
2. Tom Uelsman
3. Mandy Leahy
4. Susan Dautremont
5. Abby Wright
6. Alan Carpenter
7. Boulder, United States
8. Natalie Pennington

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