With graduation season is upon us, today’s edition of How on Earth is our annual “Graduation Special”. Our guests in the studio today are scientists who have or will soon receive their Ph.D. in a STEM-related field. They talk about their thesis research, their grad school experiences, and what they have planned next.
Marcus Piquette – CU Boulder, Department of Astrophysical & Planetary Sciences
Topic: In-Situ Observations of the Interplanetary Dust Population from Earth to the Kuiper Belt
David Reens – CU Boulder, Department of Physics
Topic: Pushing the Limits for Directly Cooled Molecules
Abigail Reens– CU Boulder, Department Molecular, Cellular & Developmental Biology
Topic: Salmonella Within Macrophages – An Extreme Environment: Small Molecule Inhibitors of Bacterial Efflux and the Roles of Bacterial Lipid Metabolism and Mammalian Co-culture During Infection
Host / Producer / Engineer : Joel Parker
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Podcast: Play in new window | Download (Duration: 29:07 — 26.7MB)
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In this week’s show, Beth interviews Joshua Goldstein. He and co-author Steffan Qvist wrote eloquently about how nuclear energy can replace fossil fuels – a vital necessity in a rapidly warming world. A new generation of nuclear plants reduces waste and completely eliminates CO2. In Sweden, France and Ontario, these plants have allowed these countries to eliminate their reliance on fossil fuels and significantly reduce their carbon footprints.



This special edition of How on Earth is produced in conjunction with the
A Consumer’s Guide to Pesticides in Produce (starts 7:55) You may be wondering if you washed the strawberries, blueberries or kale that you had for breakfast this morning enough to rid them of residue of potentially harmful pesticides. That is, if they were conventionally, not organically, grown. According to the U.S. Department of Agriculture, more than 200 different pesticides remain in some form on popular fruits and vegetables that Americans eat every day. And before testing all the produce, the USDA thoroughly washes and peels them. Such tests show that simply washing produce does not remove all pesticides. In a recently released report, as part of its


The Goodness Paradox (Teaser): Today’s spring pledge-drive show features brief clips from a recent interview with