KGNU - How On Earth

KGNU - How On Earth

Science EN ↓ 788 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

Oct 13, 2026

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Episodes

The Dust Bowl / Population Growth 06.11.2012

Feature #1: The Dust Bowl (start time 6:53) As bad as the drought has been recently in Colorado and other states, it pales in comparison to the nearly 10-year-long drought of the 1930s. Its unrelenting and gargantuan dust storms inspired the name “The Dust Bowl.” In southeast Colorado and other Great Plains states, children died … Continue reading "The Dust Bowl / Population Growth"

Stopping Cancer in its Tracks – Telomerase Receptor Inhibition 06.11.2012

Last month, CU Nobel Prize Winner Tom Cech (Check) and colleagues announced a breakthrough in their quest to stop cancer.  It involves an enzyme known as telomerase (tell-AH-mer-aze), which helps cells divide almost endlessly – helpful when a child is growing.  In adults, most cells stop responding to telomerase.  Instead they save up a limited number of cell … Continue reading "Stopping Cancer in...

The Life and Legacy of Rachel Carson 30.10.2012

The Life and Legacy of Rachel Carson (start time 6:20). The book Silent Spring, published in 1962, is widely credited for setting the stage for the modern environmental movement. Its author, Rachel Carson, an unassuming field biologist and writer, uncovered how in the process of killing crop pests, chemicals such as DDT were also killing birds, fish … Continue reading "The Life and Legacy of Rache...

CU Multidisciplinary Oil Production Study 24.10.2012

How can we best live with natural gas development? A University of Colorado team has just been awarded an NSF grant to tackle the problem. Here to chat with us about the study is Dr. Joe Ryan, the lead-PI of the multidisciplinary team. And the lead of the study’s air quality task, Dr. Jana Milford, … Continue reading "CU Multidisciplinary Oil Production Study"

Pledge Drive Show//Genetic-mutant Paganini 20.10.2012

This is our 2012 Fall Pledge Drive Show and our subject is Genes Gone Bad, or do you have to be a genetic-mutant superhuman to play Paganini? Helping us answer that question is Boulder’s own and world-renowned Dr. Gregory Walker. And in a very special treat, Gregory plays the magnificent Paganini Caprice No. 24, live … Continue reading "Pledge Drive Show//Genetic-mutant Paganini"

Boulder Nobel Science Winner//Searching for Sister Earth 10.10.2012

We talk with Travis Metcalfe, of Boulder’s Space Science Institute, where he is searching for Sister Earth and also part of the Blue Dot Project.  As for why, the past two decades have witnessed accelerating progress on one of the most fundamental questions in astronomy: Are we alone in the Universe? Astronomers have already discovered … Continue reading "Boulder Nobel Science Winner//Searching fo...

Neanderthals//Antarctica 02.10.2012

Feature #1: Neanderthals (start time: 6:01) Our Neanderthal ancestors have long been maligned as rather dim-witted cave-dwellers. But they may have been brighter — and more colorful — more like us, shall we say.  We turn to the BBC’s Science in Action for a look at new research into who these ancestors really were. Here’s … Continue reading "Neanderthals//Antarctica"

Big Waves // Omega 3 Fatty Acids 25.09.2012

Big Waves (start time 4:39):  When does one plus one not equal two? When waves behave non-linearly, according to CU researchers Mark Ablowitz and Douglas Baldwin.  The two have been researching how multiple water waves can add together to form a wave with a height much greater than twice the height of either wave. The mathematicians … Continue reading "Big Waves // Omega 3 Fatty Acids"

Colorado Drought // A More Perfect Heaven 18.09.2012

Colorado Drought Conference (start time 4:35): Experts are meeting at a conference in Denver this week to discuss the implications of prolonged drought conditions here in Colorado. How On Earth’ Susan Moran speaks with biologist Dr. Chad McNutt of the NOAA’s National Integrated Drought Information Center about wthe drought means for the ecosystem, and for Western … Continue reading "Colorado Droug...

Higgs-Boson: What is all the excitement about? 12.09.2012

We’ll talk about the World of a tiny particle called the Higgs-Boson, with CU Physicist Uriel Nauenberg.  Nauenberg also speaks tonight at the Boulder Cafe Scientifique. Hosts: Joel Parker and Ted Burnham Producer: Shelley Schlender Engineer: Jim Pullen Executive Producer: Susan Moran

The Idea Factory – Bell Labs and the Great Age of American Innovation 04.09.2012

Bell Labs thrived from the 1920s to the 1980s, when it was most innovative and productive institution of the twentieth century. Long before America’s brightest scientific minds began migrating west to Silicon Valley, they flocked to the Bell Labs campus in the New Jersey suburbs. At its peak, Bell Labs employed nearly fifteen thousand people, … Continue reading "The Idea Factory – Bell Labs and th...

Public health risks of BPA 21.08.2012

(start time: 5:50). We Coloradoans pride ourselves on our healthy habits — eating right, exercising, and paying attention to what’s in the food we eat. Yet many of the things we use everyday, like water bottles, sunscreens, makeup, and – OK, soda cans — are full of toxic chemicals. Many of them are untested, and … Continue reading "Public health risks of BPA"

Planetary Sciences Budget // Curiosity’s RAD 15.08.2012

Curiosity’s RAD (start time 7:14). To design a successful manned mission to Mars, we’ll have to know a lot about the radiation environment between the Earth and Mars and on the planet’s surface. The Radiation Assessment Detector (RAD) instrument on Curiosity is designed to make those measurements. We talk with Southwest Research Institute’s Dr. Donald … Continue reading "Planetary Sciences Budget...

Beer Can Science 07.08.2012

Beer Can Science (start time 6:50) If you’re a beer drinker, you’ve probably noticed that there are a lot of cans on liquor store shelves these days. Here in Colorado, and elsewhere, more and more breweries are choosing to put their beer in cans. There are some good reasons for that, as you’ll hear in … Continue reading "Beer Can Science"

Volcanoes & the Atmosphere // Traffic in Beijing 01.08.2012

Volcanoes & the Atmosphere (start time 6:17): We’ve known for a long time that volcanic particles and gases can travel around the world, often affecting climate.  The 1815 eruption of the Indonesian volcano Tambora chilled New England and Europe, resulting in what came to be known as “the year without a summer.”  More recently, the 1991 eruption … Continue reading "Volcanoes & the Atmosphere // Tr...

Global Weirdness // Institute for Social and Environmental Transition 25.07.2012

We feel it when we step into the heat outside; something weird is up with the climate. . Not only is it hot, we’re weathering a drought of historic proportions. That drought has set the stage for crop losses and for wildfires that are burning up the homes of people who live in the mountains … Continue reading "Global Weirdness // Institute for Social and Environmental Transition"

Immortality – Science vs Sci Fi 17.07.2012

We talk with CU-Boulder’s Tom Johnson and NYT Bestselling author, James Rollins about Rollins’ new book, Bloodline.  We also look at immortality, longevity, and aging, comparing the science and the sci fi.  And we offer extended versions of the interviews with James Rollins and Tom Johnson. Hosts: Joel Parker and Beth Bartel Producer: Shelley Schlender Engineer: Shelley Schlender … Continue readin...

James Rollins – Bloodline (SciFi book about immortality) 17.07.2012

This is an extended version of the radio broadcast of the interview with James Rollins about his new book, Bloodline.  In it, we look at the issues of science versus fiction, and technologies that might lead to life extension through robotics, artificial intelligence, and triple-stranded DNA . . . IF the good guys don’t defeat … Continue reading "James Rollins – Bloodline (SciFi book about immorta...

Tom Johnson – Extended Version 17.07.2012

This is an extended version of the broadcast interview with CU-Boulder’s Tom Johnson.  In this interview, Johnson talks about his pioneering work discovering the first “longevity gene” known as AGE-1.  He explains the various functions of this remarkable gene and others like it, and he reviews the science . . . and the fiction . … Continue reading "Tom Johnson – Extended Version"

Geologic Carbon Sequestration // Clean Technology 11.07.2012

Geologic Carbon Sequestration (Start time 4:53): As carbon dioxide emissions continue to skyrocket, researchers are scrambling to find reliable ways to curb emissions of the most persistent greenhouse gas. One of the experimental approaches is geologic carbon sequestration – trapping CO2 from power plants and other sources and pumping it thousands of feet underground in … Continue reading "Geologi...

Mountain Wildfires 03.07.2012

With record high temperatures along with record low snowpack, the Colorado Front Range has been ravaged by increasingly expensive wildfires.  For today’s show, How on Earth brings in two fire experts for a panel discussion.  John Daily is a professor of mechanical engineering at the University of Colorado and the director of the Center for … Continue reading "Mountain Wildfires"

Breasts: A Natural and Unnatural History 26.06.2012

In this special summer pledge drive show, the How On Earth science team shares reasons why they volunteer to bring you science.  And we share a conversation with Florence Williams, a local author and scientist who has an extensive history of breast and uterine cancer in her family.  She decided to do research into the … Continue reading "Breasts: A Natural and Unnatural History"

Engineering Happiness // The Effects of Black Holes 19.06.2012

Engineering Happiness (start time 05:09): You may think the key to happiness lies in money, or love, or more vacation days.  But what it really comes down to is math — a mathematical formula, actually. At least that’s according to a recently published book, called “Engineering Happiness: A New Approach for Building a Joyful Life.” It’s co-authored by two … Continue reading "Engineering Happiness /...

Dr. Paul Lightsey 12.06.2012

Dr. Paul Lightsey and JWST (start time: 5:55). Paul Lightsey, mission system engineer for the James Webb Space Telescope, joins us to share his intimate knowledge of the telescope’s optical element. JWST is the replacement for the Hubble and Spitzer space telescopes. The telescope will stare back so far in time and space that it … Continue reading "Dr. Paul Lightsey"

Potable water//Electric vehicle infrastructure 08.06.2012

Potable Water (start time 5:31). Here on the Front Range, the last three months have been the driest on record. Usually, we get about 8 inches of rain through this time period. This year, it’s more like three inches of rain. A dry year raises a question that’s always a worry in Colorado — what … Continue reading "Potable water//Electric vehicle infrastructure"

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