Space Shield for Satellites // Virtual Colonoscopy

Van Allen Belts - Courtesy NASA

Van Allen Belts – Courtesy NASA

Space Shield for Satellites (starts 1:00)   An invisible radio wave pollution makes a “space shield” that protects orbiting satellites from Van Allen Belt radiation.  Dan Baker, head of CU-Boulder’s Laboratory for Atmospheric and Space Physics (LASP) explains how his team figured out the man-made source of the mysterious space shield.

colon-cancer-thumbVirtual Colonoscopy Option Improves Cancer Screening Rates (starts 6:32)  Colon cancer kills 50,000 Americans each year.  Death rates would go down if more people did preventative screenings.  But one out of three people balk at the traditional colonoscopy.  According to a new study in the journal, Radiology, when insurance pays for either a regular OR a virtual colonoscopy, 48% of the people who avoid screenings agree to get tested.  Lead author, University of Madison’s  Dr. Maureen Smith, explains.

colon wikimedia isla labsVirtual Colonoscopy – Dr. Bill Blanchet (starts 10:10)  One of the earliest providers of virtual colonoscopies in the Rocky Mountain region is Bill Blanchet, Front Range Preventative Imaging. Blanchet explains why he offers this modern form of colon cancer screening to his patients.

Host / Producer : Shelley Schlender
Executive Producer: Alejandro Soto

Play
Share

Chronic Fatigue Syndrome // Renewables

Rehmeyer coverWe offer two feature interviews on today’s show.
Chronic Fatigue Syndrome (start time: 11:49)  Imagine spending years waking up so sore and fatigued many mornings that you can barely move. And traversing the country to find doctors who could offer a clear diagnosis, only to find out they don’t really know. And feeling your friendships and professional relationships start to fray, as people question whether you’re making up your illness. For those who have suffered from chronic fatigue syndrome (CFS, or ME), or a similar disease, Julie Rehmeyer’s story may sound painfully familiar.  The science and math writer talks with host Susan Moran about her new book about the illness, called Through the Shadowlands: A Science Writer’s Odyssey Into an Illness Science Doesn’t Understand. Rehmeyer will speak about her book on Thursday at 7:30 p.m. at the Boulder Book Store.

Nevada Solar One plant, Photo credit: Tom McKinnon

Nevada Solar One plant, Photo credit: Tom McKinnon

Renewable Energy Debate (start time: 3:20): A bitter scientific debate, as reported in the Washington Post, has surfaced among two scientific groups that are both pushing to decarbonize U.S. electricity generation. On one side  are experts such as Boulder mathematician Christopher Clack, who contends in a new analysis that the U.S. can cut its carbon emissions by nearly 80%, using existing technologies, by  2030. On the other side of this feud is Mark Jacobson, an atmospheric scientist and engineer at Stanford University. He claims the nation can move to 100% renewable energy by 2055. This week, in a peer-reviewed analysis published in the Proceedings of the National Academies of Sciences, Clack and colleagues call Jacobson’s vision of 100% renewables unrealistic, and says his calculations and modeling are full of errors. Jacobson and his group have countered Clack et al’s analysis is full of errors. Dr. Clack, founder of Vibrant Clean Energy and with NOAA and the University of Colorado Boulder when he conducted this research, talks with host Shelley Schlender about the science, the debate, and what it means for the pursuit of clean energy.

Hosts: Susan Moran, Shelley Schlender
Producer: Susan Moran
Engineers: Maeve Conran, Shelley Schlender
Executive Producer: Susan Moran

Listen here to the show:

 

 

Play
Share

Protecting Pollinators // Testing Drinking Water

Photo credit: Douglas Mills

Photo credit: Douglas Mills

We offer two features on today’s show:
Protecting Pollinators (start time: 0:58): Hills, prairies and gardens are neon green and in full bloom. A pollinator’s paradise, at least it should be. Birds, bees, butterflies, beetles and other pollinators rely on the nectar from flowering plants. We humans rely on them; roughly one out of every three bites we take comes from food that would not exist if not for pollinators. National Pollinator Week is June 19 – 25.  It will celebrate pollinators and promote how humans can help protect them.  Vicki Wojcik, research director at Pollinator Partnership, an organization that focuses on conservation, scientific research and education aimed at preserving pollinators, talks with host Susan Moran. Resources: Bee Safe Boulder (People and Pollinators Action Network), Colorado State Beekeeper Association, and Butterfly Pavilion.

drinking waterTesting Drinking Water (start time: 14:00): Two years ago Flint, Mich., turned the issue of lead in drinking water from a little known, or distant-past, hazard into a national scandal. Human error and coverups resulted in many Flint homes showing staggeringly high levels of lead in their drinking water. What happened in Flint has afflicted other cities. Water districts, which are required to monitor a sampling of homes in their districts for lead in drinking water, are stepping up efforts to prevent more Flints from happening. Here in Colorado, water districts use soda ash and other chemicals to keep their water from being overly corrosive, which was the problem in Flint. How On Earth’s Shelley Schlender interviews Michael Cook, district manager of the Little Thompson Water District at the Carter Lake Water Filtration Plant near Loveland. The plant was recently out of compliance, meaning that samples from water district have shown higher levels of lead than what the state health department considers safe. Cook discusses what the district has done. (Boulder has its own water-filtration plant and has not been out of compliance at least in recent years. But all water districts must address similar concerns.)

Hosts: Maeve Conran, Susan Moran
Producer: Susan Moran
Engineer: Maeve Conran
Executive Producer: Susan Moran

Listen to the show:

Play
Share

Long Now Foundation in Colorado // Wild Boulder Citizen Science

The Long Now Foundation in Colorado (start time 5:02): People often measure “success” as fifteen minutes of fame, or a blockbuster financial quarter. This focus on short term results doesn’t always build the skills needed to solve long-term problems, such as reducing disease outbreaks or maintaining species diversity. So some visionaries have created a playfully serious way to think ahead, and those “ways” include projects here in Colorado. Shelley Schlender tells us about the Long Now Foundation who are developing programs to foster long term responsibility and long term thinking.

Wild Boulder program. Photo Copyright Wild Boulder.

Wild Boulder program. Photo Copyright Wild Boulder.


Wild Boulder
 (start time 10:t28): Boulder is launching a new citizen science project. The project, called Wild Boulder, will allow people in Boulder to use their smartphones to record wildlife observations, including photos, and share this information with local land managers and open space experts. To find out how this program works, and how it will benefit the community, we spoke with Dave Sutherland and Melanie Hill. Dave Sutherland is an Interpretive Naturalist with theCity of Boulder’s Open Space and Mountain Parksprogram. Melanie Hill is Director of Communications for the WILD Foundation, which works to protect wilderness while balancing the needs of human communities.

Additional information:

Sources:

Hosts: Shelley Schlender and Alejandro Soto
Producer: Alejandro Soto
Engineer: Shelley Schlender
Additional contributions: Beth Bennett and Susan Moran
Executive Producer:Susan Moran

Listen to the show:

Play
Share

Beyond Earth: Our Path to a New Home in the Planets

Titan, a moon of Saturn, rises above the rings of Saturn. Image courtesy of NASA/JPL

Titan, a moon of Saturn, rises above the rings of Saturn. Image courtesy of NASA/JPL

Beyond Earth (start time 5:10) Many have dreamt of colonizing other planets. It’s been a staple of science fiction for decades. Most often, people imagine creating a colony of humans on Mars, where people would live on a cold, dry planet with a thin, unbreathable atmosphere. Mars, however, may not be the best destination for future human colonization. In fact, Titan, a moon of Saturn, may hold greater hope for extending humanity’s presence in the solar system. Either way, humans face tough but surmountable challenges as we move beyond Earth. As a planetary scientist, Dr. Amanda Hendrix is actively involved in the scientific research and future mission planning that will enable humans to settle on other planets. She’s the co-author, with Charles Wohlforth, of the new book Beyond Earth: Our Path to a New Home in the Planets. Listen to How On Earth’s Alejandro Soto’s interview with Amanda Hendrix, where they discuss the opportunities and challenges for human space exploration.

Hosts: Alejandro Soto, Shelley Schlender
Producer: Alejandro Soto
Engineer: Shelley Schlender
Executive Producer: Beth Bennett
Additional Contributions: Joel Parker, Beth Bennett

Listen to the show:

Play
Share

Impacts of Fracking

A natural gas rig near Rifle, Colorado. © AP Photo/David Zalubowsk

A natural gas rig near Rifle, Colorado.
© AP Photo/David Zalubowsk

In Colorado, a boom in methane development over the past few years has raised questions about whether the environmental impacts are outpacing scientists’ ability to measure them. Shelley Schlender and Daniel Glick discuss the current state of the science looking into fracking’s impacts.  Here is a compendium of scientific, medical, and media findings demonstrating risks and harms of fracking.

Hosts: Daniel Glick, Shelley Schlender
Producer: Joel Parker
Engineer: Shelley Schlender
Headlines: Beth Bennett, Natalia Bayona, Joel Parker
Executive Producer: Susan Moran

Listen to the show:

Play
Share

Electric Car Road Trips // Renewable Energy Nation . . . in 15 Years

Tesla Superchargers - Rural Arizona

Tesla Superchargers – Rural Arizona

Electric Car Road Trips (starts 3:42): We go on a road trip with How on Earth’s Shelley Schlender to see how all-electric vehicles are exceeding “range anxiety” by driving coast to coast, all on electricity.  Along the way we talk with Boulder Nissan’s Nigel Zeid about regional plans to help more drivers “plug in” and with Hunter Lovins, head of Natural Capitalism Solutions.

courtesy Solar Praxis

courtesy Solar Praxis

Renewable Energy Nation (starts 11:53): Joel Parker talks live with NOAA scientist Alexander MacDonald and Christopher Clack, a mathematician at the University of Colorado-Boulder. They have developed a model that demonstrates how the entire U.S. can run on solar and wind power–with existing technologies, with no batteries, and at lower cost than today’s prices–within 15 years. For more information, see this video and these animations of:
U.S. Wind Power Potential
U.S. Solar Power Potential
U.S. Power Flow

Hosts: Joel Parker, Beth Bennett
Producer: Shelley Schlender
Executive Producer: Joel Parker
Engineer: Shelley Schlender
Additional Contributions: Susan Moran

Listen to the show:

Play
Share

Hunter Lovins – Regenerative Economics Extended Version

Hunter Lovins - Natural Capitalism Solutions

Hunter Lovins – Natural Capitalism Solutions

Hunter Lovins – Regenerative Economics EXTENDED VERSION.  This is the extended version of the fall 2015 talk by Hunter Lovins, recorded by Shelley Schlender. Lovins heads up Natural Capitalism Solutions, and she’s a sought after speaker around the world, as well as here in Colorado. She gave this talk, including visuals, and called it Regenerative Economics.  This talk was recorded in Boulder as part of the Colorado Chautauqua Events series, in conjunction with the Boulder City Club.

For the broadcast version of this talk, GO HERE.

Play
Share

Historical Analysis of Agriculture and Greenhouse Gases

Adler_Cowk1223-19-e1438626342444When it comes to reducing greenhouses gases, every little bit helps, and that includes managing the greenhouse gases produced by how we grow our food.  Raising livestock and growing crops both generate greenhouse gases, and to gauge their impact, a new study takes the long range view.  The results were published in a paper: “Measuring and mitigating agricultural greenhouse gas production in the U.S. Great Plains, 1870-2000” in the Proceedings of the National Academy of Sciences.  It analyzes 100 years of agricultural production, and it takes this look at farming close to home – it focuses on the bread basket of the United States – the Great Plains, which includes eastern Colorado.  Here to tell us more are scientists Myron Guttman (University of Colorado) and Bill Parton (Colorado State University)

Hosts: Shelley Schlender, Kendra Krueger
Producer and Engineer: Joel Parker
Executive Producer: Susan Moran
Headline contributions: Beth Bennett, Kendra Krueger, Joel Parker

Listen to the show:

Play
Share

Are Ketones the Key?

Steve-Phinney-Portrait_Ketones (start time 6:40) A growing body of scientific research demonstrates health benefits for many people with a diet that’s lower in carbohydrates, and higher in fats.  In fact, some of this research indicates great therapeutic benefits,.  One reason why may be that, when carbohydrate consumption is low enough, the body enters a state of “nutritional ketosis,” where it transforms fats into a molecule called, beta-hydroxy-butyrate, or  “ketones”.  In the absence of sugar and carbs, the body can use ketones as its primary fuel.

One of the scientists who has pioneered research into nutritional ketosis is Dr. Steve Phinney, and one of the populations who he believes gets special benefits from a ketone-producing diet is endurance athletes.  For 30 years, Phinney has studied nutritional ketosis and athletic performance — including performance among bicycle racers, the winners of 100-mile ultra-marathons, and recently, a two-person rowing team that was among the top finishers in a rowing race that went from California to the Hawaiian Islands – rowing the whole way on a very low-carb, high fat, ketone-producing diet.

Hosts, Producer, & Engineer: Joel Parker
Executive Producer: Susan Moran
Additional Contributions: Beth Bennett

Listen to the show:

Play
Share
Page 1 of 71234567»

Support KGNU


How On Earth is produced by a small group of volunteers at the studios of KGNU, an independent community radio station in the Boulder-Denver metro area. KGNU is supported by the generosity and efforts of community members like you. Visit kgnu.org to learn more.

Podcast

Subscribe via iTunes
 
How On Earth episodes can be downloaded as podcasts via iTunes, or streamed to a mobile device via Stitcher or Science360 Radio.
 
Listen on Stitcher
 
Listen on Science360 Radio
 
For more info about podcasting, and more subscription options, visit our Podcast page.