How On Earth

27:59

Replaceable You: The Science of Growing Body Parts

How On Earth ·

2026/10/06

The Quest to Replace Human Body Parts (start time: 3:06) In this week’s pledge-drive show, science writer Mary Roach discusses her latest book, Replaceable You: Adventures in Human Anatomy, which was recently released in paperback (W.W. Norton & Co.). Roach is a New York Times bestselling author of Stiff, Fuzz, Bonk, and several more books. In Replaceable … Continue reading "Replaceable You: The Science of Growing Body Parts"

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28:11

Youth+Adult Climate Engagement

How On Earth ·

2026/09/29

From Climate Week to Societal Climate Engagement (start time: 1:22) Last week tens of thousands of people from environmental nonprofit organizations, private companies, academia and other sectors came together in New York City for Climate Week NYC, which coincided with the United Nations General Assembly and the UN Climate Summit. While climate activists, communicators and … Continue reading "Youth+Adult Climate Engagement"

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27:52

Symbiosis – Maybe We Are All Living Together

How On Earth ·

2026/09/22

In this week’s show, Beth speaks with author and evolutionary biologist, Rowan Hooper, discussing the themes and examples of symbiosis from his current book, Togetherness: Symbiosis and the Hidden Story of Life’s Greatest Collaborations. He explored the history of study of symbiosis, as well as wonderful stories illustrating this complex phenomenon. And, he went beyond … Continue reading "Symbiosis – Maybe We Are All Living Together"

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26:42

How Megafires are Transforming Conifer Forests

How On Earth ·

2026/09/08

Forests Vanishing in Wake of Megafires (start time: 7:55) Increasingly large and hot wildfires are turning many conifer-dominated forests in the western U.S.and Canada into shrublands or grasslands, largely by making it impossible for ponderosa and other pines to reseed themselves. The stakes are high, for flora and wildlife, as well as humans. For instance, … Continue reading "How Megafires are Transforming Conifer Forests"

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24:20

Operation Music – Why or Why Not?

How On Earth ·

2026/08/11

A heart attack forced Boulder community leader and journalist Sam Fuqua to need emergency care. While being wheeled into the operating room, Sam hoped to soothe his anxiety by hearing some favorite music. His hope had scientific merit. Studies like this indicate that surgery patients who get to choose what music plays during surgery, … Continue reading "Operation Music – Why or Why Not?"

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28:00

Just What is Wilderness?

How On Earth ·

2026/07/26

What is a wilderness, really? Here in the US we think of it as undeveloped land, put aside to appreciate its beauty and remoteness. In other lands and cultures, wilderness is a powerful, ancient concept, at the intersection of landscape, philosophy, and ecology. For thousands of years, people have sought out uncontrolled, unknown, or uncharted … Continue reading "Just What is Wilderness?"

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26:50

Silent Sky // Gold Lab Symposium

How On Earth ·

2026/05/12

Protest It, Respect It, Defend It, Use It (starts 1:00) Friday at Denver Patagonia and Saturday at Boulder Patagonia environmental activists Annie Leonard and André Carothers discuss their new book Silent Sky (starts 2:00) Viva Theater celebrates the unsung heroism of female astronomer Henrietta Leavitt. Silent Sky runs April 22 – June 7th at Boulder’s … Continue reading "Silent Sky // Gold Lab Symposium"

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26:54

A Longer Healthier Life

How On Earth ·

2026/05/05

On this week’s How on Earth, Beth speaks with author, psychologist, and aging explorer Alan Carpenter to discuss the paradigm shift on aging he espouses. Following a life changing accident, he turned his life around by diving into the science of healthy aging. In his book, Choose Better, Live Better, he outlines 9 avenues one … Continue reading "A Longer Healthier Life"

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26:55

The Loneliness Epidemic – CSU Researcher Natalie...

How On Earth ·

2026/04/27

The Loneliness Epidemic – Social media fuels extra risk. Especially vulnerable are people undergoing transitions . . . such as college students, who today share what can lead loneliness and how to heal from it. CU-Boulder senior Lorraine Healey also talks with Colorado State University “Friendship Researcher” Natalie Pennington about why times of transition can … Continue reading "The Loneliness Epidemic – CSU Researcher Natalie Pennington"

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27:43

Forest as Superorganism: What it means to Clearcut.

How On Earth ·

2026/04/21

On this week’s How on Earth, Beth speaks with Suzanne Simard, professor and researcher at the University of British Columbia, about her book, WHEN THE FOREST BREATHES, both a call to action, and a journey into the heart of British Columbia’s old growth forests and the indigenous communities that live there, and her efforts to … Continue reading "Forest as Superorganism: What it means to Clearcut."

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26:58

Buy Now Pay Later – Enticement or Addiction?

How On Earth ·

2026/04/14

Buy Now Pay Later – is this lending service simply enticing, or is it addictive? For the GenZ 20 somethings that are its biggest users, is Buy Now Pay Later a danger or a deal? CU Boulder student and Howonearth volunteer Juliana Krigsman speaks with students about this, plus Adam Brown – director of New … Continue reading "Buy Now Pay Later – Enticement or Addiction?"

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26:02

Pollinator Power & Precarity

How On Earth ·

2026/03/17

The Power of Precarity of Pollinators (start time: 8:01) This extremely warm winter in Colorado has delivered early spring blooms, and thus early appearances of some pollinators. In this week’s show we explore the world of pollinators, such as such as butterflies, bees, moths, hummingbirds and certain flies. Pollinators are responsible for roughly one third … Continue reading "Pollinator Power & Precarity"

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26:14

Women’s Health Pt. I: Menopause, etc.

How On Earth ·

2026/02/03

New Rules of Women’s Health (start time: 6:26) If you’re female, you may have come of age reading the landmark feminist health book Our Bodies, Ourselves. Originally published in the 1970s, it yielded several revised editions up to 2011. Well, get ready for an even more comprehensive tome. It’s called The New Rules of Women’s … Continue reading "Women’s Health Pt. I: Menopause, etc."

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26:24

Hepatitis B Vaccination: Just the Facts

How On Earth ·

2026/01/27

On today’s science show we hear from vaccine researchers Rochelle Walensky and Angela Ulrich, and physician/scientist Peyton Thompson, about the safety and efficacy of the hepatitis B vaccine. This is one of 6 that have been removed from the list of recommended childhood vaccines by the CDC. You’ll hear about the history of the vaccine … Continue reading "Hepatitis B Vaccination: Just the Facts"

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25:33

Water Your Winter Trees

How On Earth ·

2026/01/20

Water your trees! This warm, dry winter means urban trees need extra water to stay healthy. City of Boulder foresters Patrick LaPhilliph and Andrew Holt, and City of Longmont forester Brett Stadsvold share how and why the cities waters trees once a month during dry winter months, how citizens can … Continue reading "Water Your Winter Trees"

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26:31

Colorado’s Wildlife Action plan: Pt. I

How On Earth ·

2025/12/30

Wolves, bears, prairie dogs and more (start time: 7:12) A couple of months ago, the Colorado Parks and Wildlife agency released a plan to support biodiversity and guide how the state conserves some of the state’s most vulnerable species and habitats. Everything from iconic bears, wolves and prairie dogs, to tiny humble invertebrates and even … Continue reading "Colorado’s Wildlife Action plan: Pt. I"

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27:01

Wind: It’s Past & Future

How On Earth ·

2025/12/16

The Force of Wind (start time: 7:10) For those living here on Colorado’s Front Range, you’ve likely had close encounters with wind — whether you’ve witnessed in fear branches snapping off trees in a windstorm, or simply looked up to marvel at the UFO-like lenticular cloud formations created by fast westerly winds. Love it or … Continue reading "Wind: It’s Past & Future"

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Megadroughts Could Cause World Wide Dustbowls — CSU...

How On Earth ·

2025/11/18

Dustbowl Days Today (starts 5:00) Colorado State University grasslands scientist Melinda Smith explains the study she conducted with the grassroots help of nearly 200 scientists around the world. Their research indicates grasslands are vulnerable to Megadroughts, which climate change is making more common. Just 4 years of drought in a row may trigger Dust Bowls … Continue reading "Megadroughts Could Cause World Wide Dustbowls — CSU Melinda Smith Explains"

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27:43

Peak Performance: Revisiting a Classic

How On Earth ·

2025/11/04

Five years ago, Beth spoke with Dr Marc Bubbs about his best-selling hardcover book, PEAK: THE NEW SCIENCE OF ATHLETIC PERFORMANCE. Since then, Bubbs has been on the leading edge of new developments in the physiology and psychology of athletic performance. Bubbs helps athletes and other clients in Canada and England cope with metabolic diseases, … Continue reading "Peak Performance: Revisiting a Classic"

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26:53

Into The Unknown (Part 1)

How On Earth ·

2025/10/21

Into The Unknown (starts at 7:57) What do we know about the universe, and how do we know we know it? Conversely, what do we know we don’t know, what don’t we know that we don’t know, and why not? To help us unravel these age-old philosophical questions in the context of current science, our … Continue reading "Into The Unknown (Part 1)"

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