KGNU - How On Earth

KGNU - How On Earth

Science EN ↓ 774 episodes

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

Author

KGNU - How On Earth

Category

Science

Podcast website

howonearthradio.org

Latest episode

Jul 8, 2026

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Episodes

What’s Your Genetic Risk? 21.05.2021

In this week’s show, Beth talks with epidemiologist Genevieve Wojcik. We spoke about her work standardizing what is called the Polygenic Risk Score. This is a composite risk factor, extracted from information on many individual genes that can contribute to a disorder or genetic character. To find out more about her research visit her website. … Continue reading "What’s Your Genetic Risk?"

GoldLab Symposium 2021 – Big Data and Healthcare 11.05.2021

(Entire Show)  Larry Gold, Boulder entrepreneur and scientist, invites listeners to register on line for the 12th annual GoldLab symposium.  Due to COVID, it’s a virtual symposium this year, Thursday and Friday, May 13-14.   Extended version coming soon.   Executive Producer: Joel Parker Show Producer & Host: Shelley Schlender

2021 Graduation Special 04.05.2021

With graduation season upon us, today’s edition of How on Earth is our annual “Graduation Special”. Our guests in the studio today are scientists who have or will soon receive their Ph. D. in a STEM-related field.  They talk about their thesis research, their grad school experiences, and what they have planned next. Kate Doubleday – CU Boulder, … Continue reading "2021 Graduation Special"

A Tour of Mycotopia 06.04.2021

On this week’s show, Beth talks with author Doug Bierend about his new book, In Search of Mycotopia. He introduces us to an incredible, essential, and often denigrated kingdom of life: the fungi. A growing community of mushroom-mad citizen scientists and devotees are expanding the uses and availability of myriad fungi. From decontaminating landscapes and … Continue reading "A Tour of Mycotopia"

Burn- A New Look at Our Metabolism 30.03.2021

On today’s show, Beth talks to Herman Pontzer about his new book, Burn, a deep dive into how the human body evolved, and how our species’ deep past shapes our health and physiology. His writing includes fascinating glimpses into both field projects in small-scale societies, including hunter-gatherers and subsistence farmers, in Africa and South America, … Continue reading "Burn- A New Look at Our...

16.03.2021

On today’s show, Beth talks to Dr. Brianna Stubbs. Brianna is the lead translational scientist at the Buck Institute, the world’s first research institute for the study of aging. As translational scientist, she spearheads efforts to move basic science research into clinical and daily application. We hear about her research background in the applications of … Continue reading ""

The Alchemy of Us- How Humans and Matter Transformed One Another 11.03.2021

This week on How on Earth we speak with Ainissa Ramirez, materials scientist and author of The Alchemy of Us:  How Humans and Matter Transformed One Another.   In this book, she examines eight inventions and reveals how they shaped the human experience.      Listen to how our sleep and language were influenced by some of … Continue reading "The Alchemy of Us- How Humans and Matter Transformed One...

Good Fat is Brown! 24.02.2021

This week on How on Earth, Beth talks with Dr Paul Cohen, a physician-scientist whose research focuses on obesity and metabolic disease. They spoke about his recent study highlighting the link between brown fat and positive health outcomes in cancer, cardiovascular disease, and type 2 diabetes. Their converstiaon starts at about 5 minutes. You can … Continue reading "Good Fat is Brown!"

Honeybees: Biology & Conservation 18.02.2021

This week, Beth talks to Prof. Mike Breed, of the University of Colorado, about his longtime research on honeybees. The interview starts at about 6 min. They explore some fascinating aspects of bee biology, and some of the problems facing these amazing creatures, as well as what you can do to attract and support them. … Continue reading "Honeybees: Biology & Conservation"

Can Covid-19 Affect Your Mitochondria? 09.02.2021

Beth talks with Steven Engle, Chief Executive Officer and Director of CohBar, Inc, a biotechnology company developing mitochondria-based therapeutics to treat chronic diseases and extend healthy lifespan. The company’s lead compound, CB4211, is in early stage clinical trial for fatty liver disease and obesity. The company also has four preclinical programs, two in cancer, one … Continue reading "C...

Tom Johnson – Aging & Healthspan & Dementia 26.01.2021

  We speak with CU-Boulder Geneticist Tom Johnson about his ground-breaking research into the genetics of aging and ways to improve lifespan and healthspan.  We feature excerpts from Ariel Lavery’s StoryCorps interview with her dad, Tom Johnson, and we speak with Johnson about his recent diagnosis of Lewy Body Dementia. Executive Producer: Beth Bennett Producer: Shelley Schlender

Science On Stage 19.01.2021

Sometimes it seems that science and art are completely different worlds but that has not always been the case. There is a long history of artistic scientists and scientific artists.  In this edition of How on Earth, we talk about the alchemy of transmogrifying science into theatre. Our guests include two scientists and two playwrights who collaborated to … Continue reading "Science On Stage"

AKG & “Healthspan” — Gordon Lithgow 12.01.2021

(Whole Show) Longer “healthspan”  might be why the most popular Non-COVID story in Science Magazine last year involved the body-building supplement alpha-ketoglutarate (AKG), fed to middle-aged mice.  Buck Institute of Research on Aging Scientist Gordon Lithgow explains.   Executive Producer: Beth Bennett Producer: Shelley Schlender Additional Music: Stop This Train – by John Mayer. Listen to the...

The Case for the Ketogenic Diet – A Talk with Gary Taubes 08.01.2021

In today’s show, Beth talks with science writer and journalist Gary Taubes about his new, and more personal book (The Case for Keto) on his experience with the low-carb, high fat or ketogenic diet. He interviewed hundreds of people, physicians, scientists, and ordinary folks, about their experiences on this diet. The keto diet produces consistency … Continue reading "The Case for the Ketogenic Die...

Recycling Lithium-ion Batteries 22.12.2020

Our lives have been changed by lithium-ion (Li-ion) batteries which are everywhere: in our cell phones, cars, toys, power tools and grid energy storage. Indeed, the 2019 Nobel Prize in Chemistry was awarded to the three scientists who invented and developed them.  As the world manufactures more and more Li-ion batteries, what are the challenges and opportunities for recycling … Continue reading "R...

Scratch & Sniff COVID Test // Ice Age BONE Fire 15.12.2020

Scratch & Sniff COVID Test (starts 1:00) CU Scientist Dan Larremore explains how a smell test app might offer an affordable COVID screening that’s way more accurate than a temperature check.       Ice Age BONE Fire  (starts 6:00)  Archeologist John Hoffecker and local volunteers recreate a Paleolithic “campfire” that used bones as the primary fuel. Volunteers who helped with this project — … Conti...

Covid Vaccine Update 09.12.2020

This week on How on Earth, Beth gives an update on the efficacy, safety, and availability of the mRNA vaccines for the corona virus. You hear from Drs Tony Fauci, Michael Diamond, and Roger Seheult. Host: Beth Bennett Producer: Beth Bennett Engineer: Sam Fuqua Executive Producer: Beth Bennett Listen to the show:

Octopus Wild 24.11.2020

This week we review the hit movie “My Octopus Teacher,” the story about a man who goes diving in a kelp forest off the Western Cape of South Africa, and becomes acquainted with an octopus.   We review the movie with Roger Hanlon, a diving biologist, cephalopod expert and senior scientist at the Marine Biological … Continue reading "Octopus Wild"

CU COVID Testing Update // Rocky Mountain Spotted Fever & Climate Change 17.11.2020

CU COVID TESTING UPDATE  (starts 1:00) We join CU Engineering Professor Cresten Mansfeldt as he and his students open a sewer manhole and do maintenance on their wastewater COVID early warning system.  We also get an update on COVID status at CU Boulder.     ROCKY MOUNTAIN SPOTTED FEVER & CLIMATE CHANGE (starts 11:15) Brown dog ticks … Continue reading "CU COVID Testing Update // Rocky Mountain Sp...

The Reindeer Chronicles: Stories of Environmental Regeneration 10.11.2020

This week on How on Earth, Beth interviews author Judith Schwartz. In her new book, the Reindeer Chronicles, she takes the reader on a tour of some of the most wounded places on earth, and stories of how a passionate group of eco-restorers is leading the way to their revitalization. This optimistic book describes solutions … Continue reading "The Reindeer Chronicles: Stories of Environmental Regen...

It’s All in Your Mouth: Exploring Holistic Dentistry 28.10.2020

In this week’s show Beth talks to Dr. Dominik Nischwitz about his new book, It’s All in Your Mouth, to learn more about the relationship between our mouths and the rest of the body. Many European dentists have practiced holistic dentistry for decades. The practice is now becoming more common in the US. This idea … Continue reading "It’s All in Your Mouth: Exploring Holistic Dentistry"

Andrea Tilstra – Deaths of Despair – or not 20.10.2020

CU-Boulder Sociologist Andrea Tilstra discusses how this decade’s reduction of lifespan in the US  ties closely with two factors 1) easier access to painkillers and opioids, and 2) the obesity epidemic and the related health problems that come with it.  Tilstra also explains the quesitons a social scientist/demographer asks when examining the COVID-19 pandemic, the COVID-19 Boulder County local tr...

Clean – The New Science of Skin 13.10.2020

How clean is “clean”?  How do you get clean, and how important is it…could it actually be advantageous to your skin and general health to not try to get too clean?  We talk with medical doctor and author Dr. James Hamblin about his new book “Clean:  The New Science Of Skin“. Hosts: Chip Grandits, Joel Parker Executive Producer: Jill Sjong … Continue reading "Clean – The New Science of Skin"

The Shale Revolution: Weld County’s Golden Goose- Part Two 06.10.2020

In Part Two of the Shale Revolution, we look at the environmental concerns associated with hydraulic fracturing, particularly the air quality along the Front Range.    We interview Detlev Helmig, an atmospheric scientist, who monitors the air quality along the front range.    We also discuss why well setbacks are such a contentious issue in Colorado. … Continue reading "The Shale Revolution: Weld...

The Shale Revolution: Weld County’s Golden Goose- Part One 29.09.2020

This week on How on Earth, we look at the shale industry, which has transformed this country in ways we could not have imagined a decade ago.    How did this happen?   Where do experts think the fracking industry might be going?     In this two-part series, we consider why Wall Street and environmentalists are … Continue reading "The Shale Revolution: Weld County’s Golden Goose- Part One"

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