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Artwork for KGNU - How On Earth

KGNU - How On Earth

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

The KGNU Science Show

PublishesWeeklyEpisodes777Founded15 years ago
Number of ListenersCategories
Natural SciencesScienceSocial Sciences

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Artwork for KGNU - How On Earth

Latest Episodes

What is a wilderness, really? Here in the US we think of it as undeveloped land, put aside to appreciate its beauty and remoteness. In other lands and cultures, wilderness is a powerful, ancient concept, at the intersection of landscape, philosophy,... more

Gardens are popping up everywhere, from community plots to elementary school yards to vertical plantings. A unique approach proposed by award winning British landscaper, Harry Holding, is integrating the edible aspect of vegetable gardens with the es... more

Image credit: Monterey Bay Aquarium

Microplastics: Health Concerns, Solutions (start time: 6:02)  The Environmental Protection Agency recently issued a new rule related to monitoring 30 unregulated chemicals in drinking water that could pose human he... more

Poking the Squid –  Good Reads calls author and illustrator Perrin Roosevelt Ireland’s new book a brilliantly funny, beautifully illustrated graphic nonfiction book that shatters our puritanical and binary notions of nature..

Hosts/Producers/Enginee... more

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Recent Guests

Cal Flynn
Award-winning author, writer-in-residence at Wesleyan University
Wesleyan University; author of The Savage Landscape
Episode: Just What is Wilderness?
Harry Holding
Garden designer and author, Eat Your Garden
Eat Your Garden (book)
Episode: Eat Your Garden!
Tricia Vaidya-Nathan
Science Director at Beyond Plastics
Beyond Plastics, Bennington College
Episode: Plastics: Health Risks & Solutions
Ryan Call
Policy Specialist at EcoCycle
EcoCycle
Episode: Plastics: Health Risks & Solutions
Emily Freeman
Policy Advisor in Circular Economy at the City of Boulder
City of Boulder
Episode: Plastics: Health Risks & Solutions
Perrin Roosevelt Ireland
Author and illustrator of Poking the Squid, a graphic nonfiction book about animal sex
Author/Illustrator
Episode: Poking the Squid – What We Can Learn from Animal Sex
Elizabeth Preston
Science journalist, author of The Creatures' Guide To Caring
Viking (publisher)
Episode: Childrearing Tips (and Cautionary Tales) From the Animal Kingdom
Kyle Datta
Energy analyst
TENEO (advised groups) / Rocky Mountain Institute / Blue Planet Foundation (mentioned)
Episode: Kyle Datta – Energy Security, War & Renewable Energy
Ryan Huling
Senior writer at the Good Food Institute Asia Pacific
Good Food Institute Asia Pacific
Episode: Hidden Nations of Animals

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

Key themes from listener reviews, highlighting what works and what could be improved about the show.

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

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Talking Points

Recent interactions between the hosts and their guests.

Plastics: Health Risks & Solutions
Q: What is the EPA's recent stance on microplastics in drinking water and why does it matter?
The EPA chose not to include microplastics in its priority contaminants list for drinking water monitoring, which could hinder comprehensive assessment and regulation of exposure, though the broader scientific concern about health effects remains.
Plastics: Health Risks & Solutions
Q: What makes microplastics a public health concern beyond visible pollution?
Microplastics can travel long distances and accumulate in various organs and tissues, potentially triggering immune responses and carrying hazardous chemicals, which may contribute to health risks even at low exposure levels.
Eat Your Garden!
Q: Can you tell us a little bit about how you got into these edamental plants?
I was drawn to combining food and beauty from a young age, influenced by family and later by exploring how to integrate food into clients' gardens, which led to the concept of edamentals and finally to writing Eat Your Garden.
Childrearing Tips (and Cautionary Tales) From the Animal Kingdom
Q: Can you give an example of a non-parental caregiver that shows how deep cooperation runs in the animal world?
She discusses meerkats and banded mongooses where siblings act as babysitters and surrogate parents, helping young learn to find food and even teaching them how to safely eat hazardous prey, illustrating non-parental caregiving at scale.
Childrearing Tips (and Cautionary Tales) From the Animal Kingdom
Q: But how unique are we really in our caring, and what kinds of cooperative care do you see across species?
Preston explains that while humans have complex, long-term caregiving, many species show cooperative caretaking with grandparents, siblings, and other group members assisting in raising the young, which challenges the view that parenting is solely a parental duty.

Audience Metrics

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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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Which podcasts are similar to KGNU - How On Earth?

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

1. Hidden Brain
2. Up First from NPR
3. Houston We Have a Podcast
4. Short Wave
5. TED Radio Hour

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KGNU - How On Earth launched 15 years ago and published 777 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. Cal Flynn
2. Harry Holding
3. Tricia Vaidya-Nathan
4. Ryan Call
5. Emily Freeman
6. Perrin Roosevelt Ireland
7. Elizabeth Preston
8. Kyle Datta

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