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

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KGNU - How On Earth

Category

Science

Podcast website

howonearthradio.org

Latest episode

Jul 8, 2026

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Episodes

Cell Phone Safety 14.06.2011

The World Health Organization has officially listed cells phones as a possible carcinogen. One expert who’s not surprised at the designation is University of Colorado, distinguished professor Frank Barnes. For decades, Barnes has cobbled together hard-to-find research dollars to study the biological effects of magnetic fields and radiation, including cell phone radiation. In 2008, he … Continue re...

Cell Phone Safety – Extended Version 14.06.2011

  Here is the extended version of the interview with CU Electrical Engineering Professor Frank Barnes about cell phone safety.  

Cavemen Stayed Local while Women Left Home 07.06.2011

We talk with Sandi Copeland, Adjunct Professor of Anthropology at CU, about this story: Two million years ago, two-legged apes roamed the African landscape. Many of these ancient hominins,  lived in limestone caves in what is now South Africa. We know this through fossilized skull fragments and teeth from those caves. But fossils only tell … Continue reading "Cavemen Stayed Local while Women Left...

Colorado river crisis // “The Believing Brain” 01.06.2011

This week co-host Susan Moran speaks with Dr. Doug Kenney, director of the Western Water Policy Program at the Natural Resources Law Center at the University of Colorado,  Boulder’s law school. Kenney sheds light on the Colorado River Compact and how population growth, climate change, and water politics, are expected to further threaten our future … Continue reading "Colorado river crisis // “The...

Moonwalking with Einstein (Part 2) // Brain Evolution 24.05.2011

We present the second part of Joel Parker’s interview of Joshua Foer, author of the book “Moonwalking with Einstein: The Art and Science of Remembering Everything” (the full interview can be found here).  To round out the “brain theme” of the show, we also include an excerpt of BBC’s Science in Action where Jon Stuart … Continue reading "Moonwalking with Einstein (Part 2) // Brain Evolution"

The Future of Space Flight: Alan Stern & Elon Musk 17.05.2011

We share excerpts from a talk about the Future of Spaceflight, presented at CU-Boulder in April, featuring Alan Stern of the Southwest Research Institute and Elon Musk of Space X. Producer: Shelley Schlender Co-hosts: Joel Parker, Ted Burnham Engineer: Shelley Schlender Listen to the show:

Gold Lab Symposium & Fat for Stronger Muscles 10.05.2011

We learn about new research that indicates that the combination of exercise plus eating high cholesterol foods may help build lean body mass, even in older adults. What’s more, eating high cholesterol foods such as cheese, beef fat and eggs, when combined with exercise, also seems more heart safe than most people think, according to … Continue reading "Gold Lab Symposium & Fat for Stronger Muscles...

Climate-health link//Smart grid 03.05.2011

On this How On Earth show we explore how climate change is taking a toll on human health, and then how “smart grid” technology can help reduce the carbon footprint of electrical power generation.  Co-host Susan Moran interviews Paul Epstein, associate director of the Center for Health and the Global Environment at Harvard Medical School; … Continue reading "Climate-health link//Smart grid"

Virtual power plants//Wildfires and climate change 26.04.2011

Tom McKinnon interviews, via phone, Peter Asmus of Pike Research about Virtual Power Plants.  This emerging information technology may help to integrate more renewable power onto the gird.  And even save money for customers who are willing to turn down their energy demand when the grid is stressed. At the recent Conference on World Affairs, … Continue reading "Virtual power plants//Wildfires and c...

Natural Gas Boom//BP Oil Spill’s Human Toll 20.04.2011

We discuss the environmental and human costs of natural gas drilling practices, and then the human toll of the BP oil spill in the Gulf of Mexico one year after the disaster. On natural gas drilling practices, Susan Moran interviews Steve Torbit, regional executive director of the National Wildlife Federation’s Rocky Mountain Center; and Steven … Continue reading "Natural Gas Boom//BP Oil Spill’s...

Extended interview with Anjali Bhatara 12.04.2011

Here’s a longer version of my interview with Anjali Bhatara, which aired on today’s program. Dr. Bhatara is with the Laboratory of the Psychology of Perception at the University of Paris, where she studies the interactions between music and the brain, the mind and the emotions. She has published several papers on music perception in … Continue reading "Extended interview with Anjali Bhatara"

Theme Song Contest // Science of Music 12.04.2011

Today we announce a contest to find new theme music for How On Earth! Our current theme has served us well for more than 20 years, but we feel it’s time to change our tune. We’re looking to local musicians for that new “How On Earth” sound. Check out our Contest Page for more information, … Continue reading "Theme Song Contest // Science of Music"

Pseudoscience // Conservation 06.04.2011

Welcome to a special edition of How on Earth, done in conjunction with the Conference on World Affairs, which is being held this week on the University of Colorado’s Boulder campus.  Our two guests are participants in the Conference on World Affairs.  This first part of the show is Conference Panel 2051 titled “Pseudoscience”, with … Continue reading "Pseudoscience // Conservation"

Ocean thermal energy//Climate and drought in the Rockies 29.03.2011

Our live guests are consultant Dr. Robert Cohen and CU scientist Kristen Averyt.  Dr. Cohen discusses ocean thermal energy — a method to harvest some of the almost limitless solar energy captured daily by the oceans.  Dr. Averyt surveys the future of the Intermountain West as we increase temperature and put increasing population pressure on … Continue reading "Ocean thermal energy//Climate and dro...

Fukushima Dai-ichi Nuclear Reactor Accident 22.03.2011

In-studio guests Jeff King, Director of the Nuclear Science and Engineering Program at the Colorado School of Mines, and Len Ackland, Co-Director of the Center for Environmental Journalism at the University of Colorado, discuss the recent nuclear accident in Fukushima, Japan.  We look at the accident itself and how it might impact the future of … Continue reading "Fukushima Dai-ichi Nuclear Reacto...

Moonwalking with Einstein // Pledge Drive Show 16.03.2011

In this Spring Pledge Drive Show, we share an update on the crisis in Japan from Kathleen Tierney of CU-Boulder’s Natural Hazards  Center, and then Joel Parker interviews Joshua Foer, author of the runaway bestseller, Moonwalking with Einstein:  The Art and Science of Remembering Everything. (the full interview can be found here) Hosts: Joel Parker, … Continue reading "Moonwalking with Einstein //...

Scientific Citizen Astronauts // Scientific Performance Art 08.03.2011

This week on How On Earth, we talk with two Boulder researchers, Dan Durda and Cathy Olkin, who are training to become “scientist astronauts” on some of the first suborbital space flights provided by private companies in the post-shuttle era (extended interview available here).  We also hear about a show performed by Michelle Ellsworth, and developed in … Continue reading "Scientific Citizen Astro...

Colorado Growth Model is Replacing CSAPs // Boulder Valley Science Fair 02.03.2011

In honor of KGNU’s Kid’s Week, we go to the Boulder County Science Fair with How on Earth’s Tom McKinnon.  In turns out three of the five students Tom interviewed before the judging began ended up as winners at the science show!  Then, we look at CSAPs-Colorado’s Student Assessment Program.  That style of standardized test … Continue reading "Colorado Growth Model is Replacing CSAPs // Boulder Val...

Bioastronautics at CU Bioserve // Boulder County EnergySmart energy efficiency service 22.02.2011

Ted Burnham inteviews CU PhD student Christine Fanchiang on her role in helping the BioServe  program prepare experiments for a ride on the Space Shuttle. Tom McKinnon talks to Beth Beckel, an Energy Efficiency and Sustainability Specialist with Boulder County EnergySmart Service. Beth tells us how this new county program can help homeowners and renters … Continue reading "Bioastronautics at CU Bi...

CU Medical Professor Shares Love of Science 15.02.2011

This week we’ll feature CU Medical School Immunologist John Cohen, who has just received the American Association for the Advancement of Science top award for promoting public understanding of Science.  In addition to teaching at the Medical School, Cohen is the founder of Mini Med and the lead “disorganizer” of the Denver Cafe Sci.  We’ll … Continue reading "CU Medical Professor Shares Love of Sc...

Front range water / Kepler planet-hunter 08.02.2011

Our two features for this week’s show:  Susan Moran interviewed Joel Smith, principal at Stratus Consulting in Boulder, who has been helping the city adapt to climate change—in particular, by smartly managing its water supply; and Tom Yulsman interviewed John Troeltzsch, the Kepler mission program manager for Boulder-based Ball Aerospace, which built one of the … Continue reading "Front range wate...

From Jars to the Stars / Plants moving uphill 25.01.2011

Our guest this week is Todd Neff, who was a science reporter for Boulder’s Daily Camera newspaper and is author of a new book, From Jars to the Stars: How Ball Came to Build a Comet-Hunting Machine, about the history of Ball Aerospace. Neff joins us to speak about that history and the challenges Ball … Continue reading "From Jars to the Stars / Plants moving uphill"

Earthquakes & corruption / Astrology shake-up 18.01.2011

This week on How On Earth, University of Colorado earth scientist Roger Bilham joins us in the studio to talk about his latest study, which shows a correlation between the prevalence of corruption in a country and the likelihood of civilian deaths during an earthquake. And Shelley Schlender talks to HOE contributor and astrophysicist Joel … Continue reading "Earthquakes & corruption / Astrology sh...

MAVEN: Mission to Mars // Communicating geophysics 11.01.2011

On this week’s How On Earth, we’re joined by the University of Colorado’s Bruce Jakosky, principle investigator on the MAVEN satellite mission that will investigate Mars’ upper atmosphere. NASA granted final approval to MAVEN last fall, and the spacecraft is scheduled to launch in 2013. Also, Ted Burnham speaks with Carol Finn, incoming president of … Continue reading "MAVEN: Mission to Mars // Co...

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