KGNU - How On Earth

Poisoning the Well (Starts 2:00) Boulder science writer Sharon Udasin discusses her new book, Poisoning the Well: How Forever Chemicals Contaminated America. The book chronicles how these chemicals have ended up in our soil , drinking water, our bloodstreams . . . including in Colorado. She also explains what we can do about these sometimes … Continue reading "Poisoning the Well: How Forever Chemicals Contaminated America. "

NEPA rollbacks, environmental impacts (start time: 6:25) Amidst a flurry of moves by the Trump administration to roll back environmental regulations, last month a White House agency proposed a rule to rescind a landmark law meant to protect wildlife, their habitat, and human communities from unchecked development, and to ensure that the public has a say … Continue reading "NEPA, Wildlife, Lands Under Threat"

On this week’s show, Beth talks with Brianne Barker, Associate Professor of Biology and Director of Undergraduate Research at Drew University. Dr Barker studies innate immune responses – these are the initial, non-specific actions taken by the immune system – to fight off retroviruses such as HIV (the AIDS virus). We discuss the measles virus, … Continue reading "Measles: To Vaccinate or Not?"

We speak with Environmental Scientist Alan Townsend about his new book, This Ordinary Stardust: A Scientist’s Path from Grief to Wonder. It chronicles what happened when his family received two unthinkable, catastrophic diagnoses: his 4-year-old daughter and his brilliant scientist wife developed unrelated, life-threatening forms of brain cancer. As he witnessed his young daughter fight … Continue reading "This Ordinary Stardust: A Scientist’s Path from Grief to Wonder"

On today’s show, Beth speaks with two experts on animal behavior and training about the wolf reintroduction project in Colorado – wins and losses. Mary Angilly is an advocate for force-free, evidence-based training in dogs and other animals. For decades until his retirement from CU-Boulder, Marc Bekoff researched animal behavior, cognitive ethology (the study of … Continue reading "Train Wolves AND Humans to Coexist"

The Catalyst: RNA and the Quest to Unlock Life’s Deepest Secrets CU Boulder Nobel Prize-Winning Scientist Tom Cech says that RNA has long been the biochemical backup singer that slaves away in the shadows of the diva. In his new book, The Catalyst, Cech puts RNA in the spotlight, along with dazzling … Continue reading "Tom Cech: The Catalyst"

Tackling CH4 emissions from landfills (start time: 5:59) Methane is an extremely potent greenhouse gas, and its emissions have been rising recently in the U.S. The largest source of methane emissions is oil and gas production, followed by livestock farming. The third largest source of methane emissions is landfills. Food scraps, yard debris, paper and … Continue reading "Tackling Landfill Methane Emissions"

On today’s show, Beth speaks with CU scientist Christopher Lowry. Dr. Lowry’s research program at CU Boulder focuses on understanding stress-related physiology and behavior with an emphasis on the microbiome-gut-brain axis. He describes his recent finding that exposure to a harmless soil bacterium protects mice from the weight gain and inflammation stemming from a diet … Continue reading "How a Soil Bacterium Can Affect Mental and Physical Health"

Tackling Cement’s Huge Carbon Footprint (start time: 0:58) It’s hard to imagine modern society without a key material that so many structures depend on–cement. Think of our houses, apartment and office buildings, hospitals, parking lots, bridges, and, increasingly, massive data centers of big-tech companies. But that societal glue of sorts comes with a big climate … Continue reading "Decarbonizing Cement Production"

CU Boulder Criminologist David Pyrooz explains the science of understanding gang violence. He shares why immigrant gangs such as Tren de Aragua catch so much media attention, even though they represent only a small part of national gang violence. Pyrooz also shares what drives gangs, ways to reduce gang violence, and his personal work with … Continue reading "Gang Science – David Pyrooz"

Today on How on Earth, Beth speaks with Professor Vincent Racaniello of the Columbia University Medical Center. He has been studying viruses, particularly the polio virus, for over 40 years. Professor Racaniello is passionate about teaching virology to the World. His virology lectures can be found on YouTube. He blogs and produces the podcast ‘This … Continue reading "What’s Up with the Polio Vaccine?"

Tackling “forever chemicals” in tap water (start time: 6:11): In this week’s science show we discuss the scientific findings and societal implications of a new study showing of dangerous PFAS (per- and polyfluoroalkyl substances) in treated wastewater that ends up in the drinking water of more than 20 million Americans. We also explore the public … Continue reading "Tackling PFAS, From Wastewater to Tap Water"

In today’s show Beth reviews the latest data on the opiate epidemic in Boulder. You’ll hear from a pharmacologist who studies substance abuse, a DEA agent who oversees the task force on fentanyl, and our state senator who discusses legislation at the state level, as well as a story on a novel, implantable device to … Continue reading "Opiate Epidemic Update from 2024"

We share the How on Earth team’s picks for of science stories of 2024: Tom Cech Talks RNA (starts at 1:56) Avian Flu (starts at 9:33) Artificial Intelligence (starts at 13:13) Colorado, the Quantum State (starts at 19:19) Executive Producer: Shelley Schlender Show Producer and Host: Joel Parker Additional Contributions: Shelley Schlender, Beth Bennett … Continue reading "Science Stories from 2024"

Ibogaine (starts 1:00) The New York Times just featured Ibogaine for PTSD. We revisit a discussion of Ibogaine with Boulder Trauma Therapist Andrew Linares. Ice Cores (starts 10:00) The National Science Foundation Ice Core Facility in Lakewood houses thousands of ice cores collected from around the world. Ellen Mahoney takes us there for … Continue reading "Ibogaine//Ice Cores//Neurospsychologist June Gruber & Awe Walks"

On today’s show Beth plays portions of a chat (full version here; actual talk starts at 1 minute in) she had with Katy Bowman who is a nationally-known biomechanist, author, and movement educator. They spoke at the Boulder Bookstore, where Katy discussed her new book, My Perfect Movement Plan. Bowman combines big-picture lessons on biomechanics, … Continue reading "Move Your Body!"

If you listened to Beth’s chat with author Katy Bowman about her book (Your Perfect Movement Plan) – complete with some audience questions – and want to hear more, here is the full hour plus session. (Actual conversation starts about 2 minutes into the file.) Listen now:

Tackling Plastic Pollution (start time: 3:50) In this week’s show, host Susan Moran interviews science journalists Fionna Samuels, an assistant editor at Chemical & Engineering News, a publication of the American Chemical Society; and Priyanka Runwal, an associate editor at C&EN. Along with other colleagues, they wrote cover articles in the November 28th issue of … Continue reading "Plastic Pollution: Sources, Impacts, Solutions"

Field Report (starts 1:00) We join Boulder naturalists Steve Jones and Ruth Carol Cushman on a Christmas Bird Count as Boulder’s winter water saunas. Xmas Bird Count’s Bill Schmoker (starts 4:28) Boulder’s Annual Xmas Bird Count is Sunday December 15th. Bill Schmoker is the organizer of this Count, which is one of the longest-running and … Continue reading "Xmas Bird Count"

Cocoa Flavonoids (starts 1:00) Could a cozy cup of cocoa help with holiday stress? Nutrition Scientist Catarina Rendeiro explains how chocolate can provide anti-inflammatory flavanoids, but MOST do not. And there’s a way to tell. Science of Happiness (starts 10:33) CU Boulder Neuro-psychologist June Gruber explains the Science of Happiness, her Positive Emotion and … Continue reading "Cocoa Flavonoids//Science of Happiness"