Tackling Landfill Methane Emissions

Landfill photo credit: iStock

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 cardboard products and other carbon-based detritus that pile up in landfills release methane and other chemicals as they decompose in the soil. As part of the state’s goal of slashing greenhouse gas emissions, the Colorado Department of Public Health and Environment is developing new, and stricter, rules  that will require landfill operators to do more to monitor and capture methane emissions. KGNU host Susan Moran interviews Clay Clarke, director of the Climate Change Program at CDPHE; and Madison Hall, an associate with the Rocky Mountain Institute‘s US Program. For info on the Feb. 26 final public hearing on the  methane rule, click here.

Show Host/Producer: Susan Moran
Engineer: Jackie Sedley
Executive Producer: Beth Bennett
Headline Contributors: Beth Bennett, Joel Parker

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How a Soil Bacterium Can Affect Mental and Physical Health

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 much like the average American one, that is, high in fat and sugar. You can also hear about another CU Boulder group’s recent finding on the protective role that being in ‘greenspaces’ can provide.

Executive Producer: Beth Bennett
Show Producer: Beth Bennett
Engineer: Jackie Sedley

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Decarbonizing Cement Production

Concrete mixer truck

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 price tag.  Cement production accounts for more than 7 percent of global greenhouse gas emissions. That’s way less than the amount from coal and oil & gas production, but  roughly double the emissions  from aviation. So, finding ways to reduce the carbon footprint of cement could go a long way toward curbing the momentum of climate change and its impacts. But some players in the industry, as well as in state and federal governments, are making strides to clean up the cement industry’s act.  In this week’s How On Earth, host Susan Moran interviews  Anish Tilak, a civil and environmental engineer who is a  a manager of the Carbon-Free Buildings program at RMI (founded as Rocky Mountain Institute); and Cory Waltrip, a senior manager at the startup Sublime Systems, in Somerville, Mass.

Host / Show Producer: Susan Moran
Engineer: Jackie Sedley
Executive Producer: Beth Bennett

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Gang Science – David Pyrooz

Gang Violence in Aurora last summer

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 the City of Aurora Project SAVE  (SAVE is short for “Stand Against Violence Every Day.)

Executive Producer: Beth Bennett
Show Producer/Engineer:  Shelley Schlender

 

 

 

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What’s Up with the Polio Vaccine?

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 Week in Virology’. We cover the history of the different polio vaccines and why the oral vaccine has contributed to the resurgence of the disease in underdeveloped populations in for example, Africa, and recently, Gaza. But it’s popping up here, in the developed nations also. You’ll also hear from How On Earther Tom Yulsman speaking with author and photographer Jon Waterman about his recent book on the effects of climate change in the Arctic.

Executive Producer: Beth Bennett
Show Producer: Beth Bennett
Additional Contributions: Tom Yulsman
Engineer: Jackie Sedley

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Tackling PFAS, From Wastewater to Tap Water

Credit: USEPA

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 health risks of these  cancer-causing and otherwise toxic compounds–found in so many consumer products, including water-resistant clothing–and what’s being done on the national, state and local fronts to protect source water and our health. Listen to host Susan Moran’s interview with Kate Dunlap, the drinking water quality manager for the City of Boulder; and Bridger Ruyle, a research assistant professor of environmental engineering at New York University and lead author of the new PFAS study.

Show Producer/Host: Susan Moran
Engineer: Jackie Sedley
Executive Producer: Beth Bennett
Headline contributors: Beth Bennett, Joel Parker

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Opiate Epidemic Update from 2024

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 monitor for overdoses and autonomously inject the antidote – naloxone.

Executive Producers: Joel Parker and Shelley Schlender
Show Producer: Beth Bennett
Additional Contributions: Benita Lee
Engineer: Jackie Sedley

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Science Stories from 2024

cc NOAA Science Graphic

 

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

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Ibogaine // Ice Cores // Neurospsychologist June Gruber & Awe Walks

Eboga Plant – Source of Ibogaine

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.

 

 

Stored Ice Cores

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 a first person look.

 

CU Boulder Neuroscientist June Gruber teaches “Science of Happiness”

CU-Boulder Neuroscientist June Gruber (starts 16:15) June Gruber leads one of CU-Boulder’s most popular classes about the science of happiness.  Now Gruber discusses ways to care for health during the darker days of winter, including an ongoing study of “Awe-Walks.”

 

 

Executive Producer/Show Producer: Shelley Schlender
Host: Benita Lee
Additional Contributions: Ellen Mahoney
Engineer: Jackie Sedley

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Move Your Body!

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, kinesiology, physiology, and natural human movement with simple and practical solutions and exercises to get all your body parts moving better. Her ‘Movement is Nutrition’ approach addresses the need of our bodies for a wide variety of daily movements in order to work well. Building off the idea that movement is more than exercise, Katy wants to us to create a movement diet that will provide both macro- and micronutrients that the body needs in order to stay well and work well.

Executive Producer: Shelley Schlender
Show Producer: Beth Bennett
Additional Contributions: Joel Parker
Engineer: Jackie Sedley

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