Rare Ebony Winged Damselfly at Flagg Park (starts 1:00) Naturalists Scott Severs and Ruth Carol Cushman take us to Lafayette’s Flagg Park to see a rare and beautiful cousin of the dragonfly
Early Warning for Celiac Disease (starts 4:35)
Dismal US Mortality Rates (starts 7:07) – CU Sociologist Ryan Masters discusses his new study on US Death Rates and how US Death Rates compare to the death rates in other high income countries. Bottom line – middle-aged people are dying more often in the US, especially people of color.
Executive Producer: Beth Bennett
Show Producer: Shelley Schlender
Podcast: Play in new window | Download (Duration: 26:57 — 24.7MB)
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Today on How on Earth, Beth speaks with author Roger Briggs about his new book: 
This week on How on Earth, Beth gives an update on the new drug just authorized by the FDA to treat Alzheimer’s disease, aducanumab, sold under the brand name Aduhelm. Then hear her interview with Dr Marc Bubbs, whose new book, 
Today on How on Earth, Beth replays a timely interview with Boulder author Bob Crifasi, a long time water resource manager. His book, on the history and consequences of Front Range water use, is especially relevant now during our longterm drought.Bob works in water management and planning and is an environmental scientist with over 25 yr experience. He was the Water Resources Administrator for the city of Boulder’s Open Space and Mountain Parks Dept. He has served on board of directors of 11 ditch companies and as the president of several, supervising all aspects of ditch operation. We talked about his book, 
In this week’s show, Beth talks with epidemiologist Genevieve Wojcik. We spoke about her work standardizing what is called the Polygenic Risk Score. This is a composite risk factor, extracted from information on many individual genes that can contribute to a disorder or genetic character. To find out more about her research visit her 
With graduation season 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.
Jason Silver – CU Boulder, 
Zach Ulibarri – CU Boulder, 