Urban Air Pollution: A new culprit

Los Angeles Smog. Image Courtesy of Clean Air Coalition

Los Angeles Smog. Image Courtesy of Clean Air Coalition

It’s the endless stream of tailpipes on the L.A. freeway which  causes that unsightly smog, nagging cough and chronic respitory problems, right?  Perhaps not any more, a new scientific study helps build the case that the major culprit may now be purchases made at the corner drug store or hardware store.  Chip Grandits speaks with Dr. Brian McDonald of NOAA about perhaps changing tactics for the next stage in the human race’s campaign to keep the air clean and healthy in both the indoor and outdoor environments of the urban areas many of us call home.

A couple headlines focus on related aspects of the changing climate in our Alpine environment and what it really means.  Does it seem like spring comes earlier every year, or is that just your imagination?  Well, the science says probably not, especially if you live in the Northern latitudes.  Science journalist Tom Yulsman, who writes about climate change and beyond in his blog ImaGeo for Discover magazine,  offers a headline  the declining snowpack in the Rockies.

Producer, Host, Engineer:  Chip Grandits
Contributors: Tom Yulsman, Susan Moran
Executive Producer: Susan Moran

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2017 Graduation Special (part 2)

diploma-and-graduation-hatWith graduation season is upon us, or in many cases in the rearview mirror, today’s edition of How on Earth is the second of a two-part “Graduation Special”. Our guests in the studio today are scientists who recently graduated with – or soon will receive – their Ph.D.  They talk about their thesis research, their grad school experiences, and what they have planned next.

abbyAbby Koss – CU Boulder, Chemistry and Biochemistry
Topic: New Insights into Fossil Fuel Volatile Organic Compound Emissions and Chemistry using H3O+ and NO+ Chemical Ionization Mass Spectrometry


matteoMatteo Crismani – CU Boulder, Department of Astrophysical and Planetary Sciences
Topic: Cometary Gas and Dust Delivered to Mars


Version 2Callie Fiedler – CU Boulder, Electrical Engineering
Topic: Characterizing the Properties of 3D Printed Hydrogels for Regenerative Medicine



Host / Producer / Engineer : Joel Parker
Executive Producer: Susan Moran

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