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KGNU – How On Earth — Natural Sciences
KGNU – How On Earth

The KGNU Science Show

Latest Episodes:

SOLO: Building a Remarkable Life of Your Own – Peter McGraw Sep 03, 2024
Show notes

Peter McGraw

SOLO: Building a Remarkable Life of Your Own. CU Boulder Professor, Behavioral Economist and book author Peter McGraw uses statistical data and personal anecdotes to explain the growing worldwide trend for adults to live “Solo.”

(for Cat Ladies song, go here)

Show Producer and Host: Shelley Schlender
Executive Producer: Susan Moran

Science from The Moon Aug 27, 2024
Show notes

When people talk about going to the Moon, it is often in terms of establishing a station there, or finding water, or doing science about the Moon such as studying moon rocks. But we can do interesting science from the Moon that can’t be done on Earth, which is our topic today with guest Dr. Jack Burns, Professor Emeritus in the University of Colorado Department of Astrophysical and Planetary Sciences and Department of Physics. We talk about doing radio astronomy with instruments on the Moon such as ROLSES, LuSEE-Night, and FarView.

Show Producer and Host: Joel Parker
Executive Producer: Susan Moran
Additional Contributions: Shelley Schlender, Beth Bennett

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Invasive Weed Management in Boulder County Aug 19, 2024
Show notes

On this week’s show Beth speaks with Joe Swanson and Laura Backus to discuss some of the invasive weeds that are plaguing Boulder County. Joe is the County Weed Coordinator for Boulder County Parks & Open Space. Joe has worked for over 17 years in rangeland and natural areas management and has been on the forefront of Boulder County Parks & Open Space natural areas invasive weed management program. Laura is a local ecologist with several decades of experience and concern in the same area. The efforts they describe are helping to restore the ecology and ecosystem function in our incredibly diverse open space lands. Photos of invasive weeds are available on the county website as is a form for reporting them.
Executive Producer: Susan Moran
Show Producer: Beth Bennett
Additional Contributions: Shelley Schlender
Engineer: Jackie Sedler

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Why Do Animals Talk? Aug 13, 2024
Show notes

Animal Communication Science (start time: 2:57) Whether you own a dog or horse, or have listened to dolphins, wolves, chimpanzees or other wild animals, you’ve probably wondered what they’re saying when they communicate vocally – and why do they communicate the way they do? Our guest, zoologist Arik Kershenbaum, explores recent scientific discoveries in animal vocal communication in his new book Why Animals Talk: The New Science of Animal Communication (Penguin Press). His exploration of wolves howling, dolphins whistling, gibbons warbling, and far more, poses more questions than answers about the natural world, including our place in it. In this week’s science show (listen here or download the podcast) host Susan Moran interviews Dr. Kershenbaum, a lecturer and fellow at Girton College, University of Cambridge, where he is a member of the Bioacoustics Research Group. Previously he wrote the book The Zoologist’s Guide to the Galaxy.

Hosts: Susan Moran, Joel Parker
Show Producer/Executive Producer: Susan Moran
Engineer: Joel Parker

Listen to the show here:

Fire Resistant Homes Aug 06, 2024
Show notes

In this fire prone season, we talk with experts about an ancient building technique that might reduce the chance that a building’s going to burn. Unfired, compressed earth blocks are a building material that involves clay, sand and lime. Our guests are architect-engineer Lisa Morey and one of her clients, Matteo Rabescini, who had such a home built in Superior, Colorado after the 2021 Marshall fire. You can read more at Colorado Earth/Nova Terra, Heart of A Building, and Lisa Morey’s substack.

Hosts: Esther Frost, Joel Parker
Show Producer: Shelley Schlender, Joel Parker
Engineer: Joel Parker
Executive Producer: Susan Moran

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Wildfires & Smokey Skies Jul 30, 2024
Show notes

credit: Maeve Conran. The Flatirons in Boulder shrouded in wildfire smoke on Wednesday, July 24, 2024. The Colorado Department of Public Health and Environment issued an air quality alert due to particle pollution and ozone levels.

Wildfire smoke has marred the Front Range in recent weeks, due to Megafires that are likely to become more frequent. And more smoke is likely.

Fire Weather: A True Story from a Hotter World (Starts 00:00) Beth Bennett speaks with author John Vaillant about the Canadian firestorm that forced 100,000 people to run for their lives . . . and why firestorms like this are becoming more common. (For extended version, go here)

Smokey Skies (Starts 15:00) The Front Range is getting eye-stinging smoke from wildfires over 1,000 miles away . . . last week, from Canada, and this week, likely from California, according to the Colorado Smoke Blog. University of Utah Atmospheric Scientist Dr. Derek Mallia speaks with Rocky Mountain Community Radio Director, Maeve Conran, about why wildfire smoke travels so far, and how people can protect themselves from its toxic effects.

Host/Producer: Shelley Schlender
Additional Contributions: Beth Bennett and Maeve Conran
Executive Producer: Susan Moran

Curious Patterns of Chickadees Jul 23, 2024
Show notes

Photo credit: Jeff Mitton

Clever Chickadees on the Front Range (start time: 4:20) Many of us wake up these days to a chorus of songbirds, including mountain and black-capped chickadees. Host Susan Moran interviews Scott Taylor, an ecologist at CU Boulder and director of the Mountain Research Station near the Continental Divide, about a multi-year study, the Boulder Chickadee Study, in which the Taylor Lab team is learning about the interbreeding and food-storing behaviors of these two closely related species.

Hosts: Susan Moran, Joel Parker
Show Producer: Susan Moran
Engineer: Joel Parker
Executive Producer: Susan Moran

Listen to the show here:

Rangeland Restoration – A Science Moab Show Jul 15, 2024
Show notes

On this week’s How on Earth we’re airing a show produced by Science Moab‘s Peggy Hodgkins. She speaks with Professor Kari Veblen, who is currently a professor of rangeland ecology at Utah State University. Her research focuses on the ecology and management of rangelands, including questions related to restoration, plant community dynamics, grazing and unraveling livestock vs. wildlife effects on their environment. Her research takes place predominantly on multi-use rangelands that are managed simultaneously for livestock production and wildlife conservation. She works closely with both public and private land managers, as well as interdisciplinary teams of scientists, to find ways to improve restoration and other management practices.

Executive Producer: Susan Moran
Show Producer:Beth Bennett
Headline: Joel Parker
Engineer: Jackie Sedley

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Our Moon Jul 12, 2024
Show notes

In this episode, we talk with journalist and author Rebecca Boyle about her book Our Moon – How Earth’s Celestial Companion Transformed the Planet, Guided Evolution, and Made Us Who We Are. We discuss how the Moon impacts all aspects of our lives including the creation of life. It is a key component to philosophy and religion, culture and agriculture, art and science, sense of time, and sense of our place in the universe.

Producer/Engineer: Joel Parker
Executive Producer: Susan Moran

Listen to the show here:

“Compostable” Product Truths & Lies Jul 02, 2024
Show notes

Making “Compostable” Products Truly Compostable (start time: 0:56) You’ve probably wracked your brain at some point trying to figure out whether the compostable-labelled clamshell or the green-tinted plastic cup you got at a restaurant is truly compostable. Many products contain misleading and outright false claims, leaving consumers confused about how to do good by the planet. Indeed, tons of food and yard waste, as well as organic food-packaging products, end up in landfills, where they decompose under anaerobic conditions and generate methane, a greenhouse gas far more potent, if shorter-lasting, than carbon dioxide. Organic waste from landfills and wastewater is the third largest source of human-related methane emissions, after livestock and oil and gas emissions, according to the Rocky Mountain Institute.
On this week’s show, host Susan Moran interviews Dan Matsch, the director of the Compost Department at Eco-Cycle in Boulder; and Nora Goldstein, editor and publisher of BioCycle, about a new product-labeling law in Colorado and other efforts to hold product manufacturers accountable, and to clean up the waste stream.
(Click here for the Compostable Labeling Complaint Form in Colorado. And listen to our recent “The Dirt on Composting” show.)

Host/ Show Producer: Susan Moran
Engineers: Jackie Sedley, Greta Kerkhoff
Executive Producer: Susan Moran

Listen to the show here:

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