I am a host and producer of "How on Earth," the KGNU weekly science show.  You can view the show posts to follow my interviews with scientists and others on a wide range of topics, including oncofertility, climate change and its global and regional impacts, renewable energy, nitrogen pollution, sustainable agriculture, environmental toxins, and conservation biology.

Selected 2017 interviews:

June 20: Chronic Fatigue Syndrome. Featuring Julie Rehmeyer, author of the book Through the Shadow Lands: A Science Writer's Odessy into an Illness Science Doesn't Understand.

June 13: Protecting pollinators.  Featuring Vicki Wojcik, research director at Pollinator Partnership.

March 28: Health impacts of oil and gas drilling.  Featuring Lisa McKenzie, a professor of environment epidemiology at the Colorado School of Public Health at the University of Colorado Anschutz

February 14: Your brain on nature.  Featuring Florence Williams, journalist and author of the book The Nature Fix: Why Nature Makes Us Happier, Healthier, and More Creative.


Selected 2016 interviews:

August 23: The science and politics behind methane emissions from natural gas. Featuring NOAA scientist Dr. Colm Sweeney,  co-author of a study about the Four Corners region; and Dr. Christopher Clack, a physicist and mathematician at CIRES.

August 16: Lessons from Flint, Michigan’s lead-in-water crisis. Featuring Dr. Marc Edwards, the Virginia Tech professor who led the investigation in Flint, as well as previous water-contamination probes.

July 12: Toward sustainable agriculture: how major food retailers, wholesalers and producers, such as Walmart, United Suppliers and Unilever, are making their whole supply chains less carbon- and nitrogen-intensive. Featuring Suzy Friedman, a sustainable agriculture expert with the Environmental Defense Fund. 

July 5: Shrinking ozone hole above Antarctica. Featuring Dr. Birgit Hassler, a researchers with the Cooperative Institute for Research in Environmental Sciences, a NOAA-University of Colorado, Boulder partnership. 

June 28: Why pollinators matter. Featuring Mary Ann Colley, vice president of science and conservation at the Butterfly Pavilion in Westminster, Colo.

May 24: Our Microbes, Ourselves: How soil bacteria can treat stress disorders. Featuring Dr. Christopher Lowry, an associate professor of integrative physiology at the University of Colorado, Boulder.

March 29: Mapping nitrogen pollution, showing how it may be killing off plant diversity throughout the U.S. Featuring Dr. Sam Simkin, a research associate at the University of Colorado, Boulder.

March 15: The science and politics of mind-body connections. Featuring Dr. Jo Marchant, author of Cure: A Journey into the Science of Mind Over Body.

February 23: Colorado high school STEM stars; and sex and evolution in the sea. Featuring students Lindsey Welch and Tyco Mera Evans; and Marah Hardt, author of Sex in the Sea

February 2: The science and politics of research on neonicotinoids, a controversial class of pesticides, on pollinators. Featuring former USDA entomologist Dr. Jonathan Lundgren, who founded Blue Dasher Farm.

January 26: A new model shows how the entire U.S. can run on solar and wind power, all with existing technologies, with no batteries, within 15 years. Featuring study authors Dr. Christopher Clack and Dr. Alexander MacDonald of CU Boulder.

Selected 2015 features and interviews:

Feb. 3: Dispatch from the Arctic Frontiers conference, on shifting ecology and politics in the thawing Arctic. Featuring Dr. George Hunt, a biologist at the University of Washington, and Aili Keskitalo, president of the Sami Parliament in Norway. (Stay tuned for more interviews on How On Earth from the Arctic Frontiers conference.)

Selected 2014 interviews:

Ongoing series of feature interviews on KGNU’s science show, How On Earth, called “The Ocean Is Us”:

 Sept. 9, 2014: Fabien Cousteau, aquanaut, discusses his Mission 31 and science education.

August 26, 2014: Sustainable Seafood and Fisheries, with John Hocevar, a marine biologist who directs the Oceans Campaign at Greenpeace, and Carrie Brownstein, who develops standards to guide seafood purchasing for the Whole Foods markets in the U.S., Canada, and the U.K.

(link: http://howonearthradio.org/archives/4202  )

August 19, 2014: Marine Sanctuaries, with Billy Causey, of The Office of National Marine Sanctuaries at NOAA , and Vicki Nichols Goldstein, founder of the Colorado Ocean Coalition, a nonprofit based in Boulder, Colo., dedicated to connecting people living inland to ocean conservation efforts.

July 9, 2014: Endocrine Disruptors in Waterways, with Alan Vajda, an environmental endocrinologist at the University of Colorado Denver
(Link: http://howonearthradio.org/archives/4110)

June 26, 2014: Marine Science Education, with Mikki McComb-Kobza, a marine biologist and executive director of Teens4Oceans; and Shelby Austin, a recent graduate of Ralston Valley High School in Arvada. 

Selected 2013 interviews:

Sept. 24, 2013: Dr. Deane Bowers, professor and curator of entomology at the CU Boulder Museum of Natural History

Sept. 17, 2013: Dr. David Guggenheim and Vicki Goldstein, on how inland watersheds and lifestyles connect intimately to oceans.

Sept. 10, 2013: Brian Stucky, a doctoral student in ecology and evolutionary biology at the University of Colorado Boulder, on sound-making summer insects.

August 20, 2013: Dr. Laxmi Kondapalli, assistant professor of reproductive endocrinology and infertility at the University of Colorado Denver and head of theCU Cancer Center’s Oncofertility Program, on advancements in cancer therapies and fertility preservation.

(I'll link to other 2013 and 2012 shows soon.)


 Nov. 8, 2011: John Mischler, doctoral candidate at the University of Colorado-Boulder, discusses his research on trematodes and parasitic diseases stemming from excess nutrients in water bodies. (Time mark 14:10) Link.

Nov. 1, 2011: Jon Jarvis, director of the National Park Service, discusses NPS' quest to lure more people to urban parks, not just iconic national parks such as Yellowstone and Grand Canyon.

 Oct. 11, 2011: Emma Marris, author of new book called "Rambunction Garden: Saving Nature in a Post-wild World," sheds light on how notions of wilderness preservation are evolving to accommodate the ever-changing nature world, and our role in it.


Dec. 14, 2010:  Jennifer Blum, a biologist specializing in seabirds. Interviewed at Palmer Station, Antarctica. Subject: The future of the Adelie and other penguins and seabirds in the Western Antarctic Peninsula.  Audio file (mp3).

Dec. 7, 2010:  Alex Culley, virologist at the University of Hawaii. Interviewed at Palmer Station.  Subject: The role viruses play in the western peninsula's ecosystem.  Audio file (mp3).

Nov. 30, 2010:  Chris Neill, senior scientist at the Marine Biology Laboratory in Woods Hole, Mass.  Interviewed live at Palmer Station. Subject: Palmer Station's Long-term Ecological Research (LTER) program and how climate change is affecting Antarctica.   Audio file (mp3).

Sept. 30, 2010: Call-in show on wildfire management after the devastating Four Mile Fire in Boulder County.  Audio file (mp3).

Radio Features:

Hippotherapy as a Method of Treating People with Neuromuscular and Cognitive Disorders

13 June 2012

BBC World Service’s Health Check programme

Click here for the audio file. (Listen to teaser at the beginning, then scroll to start time 6:20. Feature runs for 5:35)


Hippotherapy on the Front Range in Colorado

 KGNU community radio Morning Magazine  03 May 2012

 Click here for audio file.