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Natural Sciences
**KGNU – How On Earth**

The KGNU Science Show

Latest Episodes:

**Testosterone – Bane or Benefit?** Aug 30, 2022
Show notes

ON this week’s show, Beth talks with Carole Hooven about her new book: “T – The Story of Testosterone, the Hormone that Dominates and Divides Us”. She demonstrates that the hormone acts in concert with genes and culture to produce a vast variety of male and female behavior. And, crucially, the fact that many sex differences are grounded in biology provides no support for restrictive gender norms or patriarchal values. In understanding testosterone, we better understand ourselves and one another—and how we might build a fairer, safer society.

**Executive Producer:** Beth Bennett
**Show Producer:** Beth Bennett
**Additional Contributions:** Shelley Schlender

Listen to the Show:

**Colorado River Basin Crisis: Pt. II** Aug 23, 2022
Show notes

**Colorado River Basin Crisis Pt. II** (start time: 6:19): This week’s How On Earth show focuses on the implications and future prospects after the federal government in June ordered the seven Western states that rely on the river to come up with a plan to save trillions of gallons of water from the shrinking river) — and after the August 15 deadline came and passed without a deal. (Here’s the Bureau of Reclamation’s news release.) How On Earth host Susan Moran interviews Aaron Citron, senior policy advisor with The Nature Conservancy’s Colorado chapter; and journalist Jerd Smith, editor of Fresh Water News. (For background, check out our July 26th show, Pt. I on the Basin’s Basin’s climate, drought, and overuse crisis. Also, see how you can make a difference by taking advantage of this recently signed legislation that helps Colorado residents convert their grass lawns into water-saving landscapes.)

**Hosts**: Susan Moran, Joel Parker
**Producer**: Susan Moran
**Executive Producer**: Beth Bennett
**Headline contributors**: Beth Bennett, Shelley Schlender

Listen to today’s show here:

**What’s New in Climate?** Aug 17, 2022
Show notes

In this week’s How on Earth, we look at 3 aspects of climate change: its role in disease incidence and transmission; some effects of the new climate change legislation; and how ‘micro-forests’ can mitigate temperature and water loss. The latter comes from an interview with author Hannah Lewis and her book Mini-Forest Revolution, in which she describes the Miyawaki Method, a unique approach to reforestation devised by Japanese botanist Akira Miyawaki.
**Executive Producer:** Beth Bennett
**Show Producers:** Beth Bennett & Benita Lee
**Engineer:** Shannon Young
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**DNA Superconductors // Western Rewilding // What Your Food Ate** Aug 09, 2022
Show notes

**DNA Superconductors** (Starts 1:00) Scientists are harnessing DNA to make electronic components at the nano-scale.

**Western Rewilding Network** (Starts 3:50) Researchers at Oregon State University are urging the U.S. to set aside 500,000 square kilometers for a Western Rewilding Network that would include wolves and beavers as part of ecosystem restoration. Their research appears today in the journal BioScience.

**What Your Food Ate: How to Heal Our Land and Reclaim Our Health** (Starts 9:05) KGNU News Director Shannon Young speaks with authors David R. Montgomery and Anne Biklé for the science behind the time-honored adage that the roots of good health start on farms . . . and how modern agriculture needs to change to restore those roots.

**Hosts**: Joel Parker & Benita Lee
**Producers**: Shelley Schlender, Joel Parker & Benita Lee
**Executive Producer**: Beth Bennett
**Feature contributors**: Joel Parker, Benita Lee, Shannon Young

**Alcohol, Brain Damage & Genetics** Aug 03, 2022
Show notes

**Colorado Cafe Sci** (starts 1:00) happens monthly, in Denver.

cc Wikimedia

**Alcohol and Alcoholism Recent News** (starts 2:49) We look at recent science about alcohol consumption, including a study that indicates as little as 3 glasses of wine a week is associated with buildups of iron in the brain — a risk factor for brain disease, increased binge drinking among pregnant women, and a new study about genetic characteristics associated with alcoholism.

Beth Bennett **Discusses the Biology of Alcoholism, Homeostasis and Allostasis** (starts 5:35) Discussion includes a reference to the studies about yeast and entropy with Matthias Heinemann. Go here to listen to the entire extended interview (45 minutes long) and go here for an extended version transcript

**Executive Producer:** Beth Bennett
**Show Producer:** Shelley Schlender
Additional Contributions: Joel Parker & Benita Lee

Salmon Wars Part 2: Farm-Raised LAND Salmon Jul 19, 2022

Show notes

We continue our look at the new Expose, Salmon Wars, the Dark Underbelly of our Favorite Fish, by checking out an alternative – LAND-Based Farmed Salmon.

Chef Sheila Lucero – (starts 2:25) We TASTE land-based salmon, with Coloraado’s award-winning, national expert on sustainable fish and member of Seafood Watch BlueRibbon Task Force, Jax Fish House Chef, Sheila Lucero.

Land-Based Salmon: (starts 15:15) We ask Brandon Gottsacker, president of Superior Fresh aquaponics farm, about his BAP-Certified, salmon falm, the Scretting Fish Meal they feed their fish, and their leafy greens produce operation.

HostProducer: Shelley Schlender
Executive Producer: Beth Bennett