KGNU - How On Earth

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?"

The Brain on Menopause (start time: 01:24) In this week’s show, we offer the finale of our three-part series on menopause and women’s health. We focus on a most precious organ: the brain. And we discuss how hormones such as estrogen and cortisol affect brain health; on how experiencing stress during childhood can intensify perimenopause … Continue reading "Women’s Health Pt. III: Menopause & the Brain"

On this week’s How on Earth, Beth talks with neuroscientist and chronic pain researcher Jayson Ball. He recently completed a study of a novel brain circuit involved in generating chronic pain. Since finishing his graduate studies at CU Boulder, he has moved to Neuralink, a biotech start up focused on implantable brain devices with the … Continue reading "A Brain Circuit That Switches Acute to Chronic Pain"

Preserving prairie dog+raptor ecosystem (start time: 5:03) Spring has just begun, even if winter hardly visited Colorado. On the plains, prairie dog colonies seem to be in full swing. However, populations of these keystone species have plummeted, as the grasslands they and raptor predators rely on are being fragmented by urban development, as well as … Continue reading "Conserving Imperiled Prairie Dogs, Raptors & Their Grasslands"

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"

How big is the universe – not just in the scale of distance but also the scale of time? What do those…astronomical…scales mean about us humans on Earth and how can we understand and measure such vast expanses? In this episode, our guest, astronomer and author Dr. Jeff Bennett, helps us wrap our minds around … Continue reading "The Scale of the Universe"

On this week’s How on Earth, we hear from a climate scientist about the implications of our changing weather patterns for winter recreation. It’s a warm, dry winter, throughout the Rocky Mountain West and elsewhere in the country, the weather has been a mixed bag. Dr. Elizabeth Burakowski, a Research Faculty member in the Institute … Continue reading "Winter Recreation in a Warmer World"

We hear an interview aired by our sister community radio station’s, Science MOAB. Ecologist Brooke Osborne talks about how dryland ecosystems – such as the grasslands east of Boulder – influence the whole planet. Dryands cover 40% of the earth; they support a third of the planet’s humans, and while their roots store lots of … Continue reading "What do Grasslands Have to do with Climate Change?"

Truths & Tips About Women’s Heart Health (start time: 7:33) February is American Hearth Month, a nationwide observation spotlighting cardiovascular disease, and a call for all of us to take care of our hearts. Heart disease is the leading cause of death in the country, for both men and women, and for most racial and … Continue reading "Women’s Health Pt. II: Heart Health"

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."

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"

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"

We speak with experts about how artificial intelligence combined with Police Body Camera footage improved professionalism in the Aurora Colorado Police Department. Guests include Anthony Tassone, CEO of Truleo and Ian Adams, Criminologist at the University of South Carolina and co-author of a new study about this tech in the journal Criminology We also discuss … Continue reading "Improving Law Enforcement Behavior through Artificial Intelligence"

Protecting Wolves, ferrets, prairie dogs, vultures, etc. (start time: 3:39) How effective are Colorado’s efforts to preserve vulnerable species – wolves, black-footed ferrets, bears, prairie dogs and others? And what ingredients make it possible, including throughout the U.S. and the world, for wild animals and humans to get along when their homes overlap? Today How … Continue reading "Colorado’s Wildlife Action Plan, etc.: Pt. II"

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"

In this week’s show Beth speaks with science writer, educator, and scientist Dr. Lisa Gardiner about her recent book Reefs of Time: What Fossils Reveal about Coral Survival. Lisa studied the fossil remains of ancient coral reefs, which also suffered from environmental challenges. In our conversation, you’ll hear about how the past shapes the present, … Continue reading "Coral: Past, Present, Future"

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"

On today’s show, Beth speaks with award-winning science writer Jennifer Frazer about her upcoming book: The Slime Mold’s Guide to World Domination: A Natural Mystery. The book is a funny natural history of slime molds that’s also a mystery that asks: how can a giant crawling cell possibly be intelligent?” Jennifer has degrees in biology … Continue reading "World Domination…by Slime Molds?"

Critical Earth Minerals Hiding in Plain Site – Colorado School of Mines professor Elizabeth Holley shares how the US could break its dependency on critical earth mineral imports, and lead the world in environmentally safe ways to do it. Show Producer/Host/Engineer: Shelley Schlender Executive Producer: Beth Bennett

Great Steam . . . from a Heat Pump (starts 1:00) Time Magazine named CSU Engineer Todd Bandhauer one of 2025’s top climate innovators. His heat pump makes steam better than fossil fuel steam boilers. Interview thanks to Rocky Mountain Community Radio and Aspen Public Radio. CU-Boulder at COP30 Climate Conference (Starts 7:05) CU Boulder’s … Continue reading "Better Steam//CU-Boulder at World Climate Conference"