KGNU Community Radio

I'm Beth Bennett, and this is How on Earth, the KGNU Science Show.

Today is Tuesday, September 22nd, 2026.

Coming up, I speak with Rowan Hooper about the endlessly fascinating topic of symbiosis.

Additional music from The Choral Song by Kids TV.

Visit our website at howunearthradio.org to find past episodes, extended interviews, and you can subscribe to our show through Apple Podcasts or follow us on Facebook or Blue Sky.

Questions or comments, call the KGNU comment line at 303-447-9911.

For How on Earth, the KGNU Science Show, I'm Beth Bennett.

I'm Shelley Schlender.

This is How on Earth, the KGNU science show.

Coming up, war is becoming more common.

We'll speak with CU Boulder professor Aaron Clauset about what scientific statistics about war can tell us about our future.

Additional music from Glass Ukulele.

Visit our website at howonearthradio.org to find past episodes, extended interviews, and hot links to what we've talked about today.

Questions or comments? Call the KGNU comment line at 303-447-9911.

For How on Earth, the KGNU science show, I'm Shelley Schlender.

And I'm Susan Moran.

This is How Unearthed, the KGNU Science Show.

Today is Tuesday, September 8th, 2026.

Coming up, discussion about how bigger and hotter wildfires are turning many conifer forests into shrublands and what this means for the future of many species, our water supply, and much more with Dr. Jonathan Koop, a fire ecologist at Western Colorado University.

Additional music from Boulder's very own Jesse Mano.

Visit our website at howonearthradio.org to find past episodes, extended interviews, and you can subscribe to our show through Apple Podcasts or wherever else you get your podcasts and follow us on Facebook.

Questions or comments, call the KGNU comment line at 303-447-9911.

For How on Earth, the KGNU Science Show, I'm Joel Parker.

Autobots, roll out.

This is the Labor Exchange on KGNU, Boulder, Denver, and Fort Collins.

I'm your host, Robert Lindgren, with the Colorado AFL-CIO and Denver newspaper, Gill.

On today's episode, we explore some local labor history ahead of the Labor Day holiday next week.

But it was at the founding of the IWW, the largest affiliate of that organization.

And Big Bill stayed in the IWW and ended up at odds with his former fellow unionist or comrade's

This has been the Labor Exchange on KGNU Boulder, Denver, and Fort Collins.

Make sure to join us on Labor Day in Louisville for the 90th annual parade.

I'm Benita Lee.

This is How on Earth, the KGNU Science Show.

Coming up, in this era where tech and screens might lead to addiction, how are they being used in our schools?

I can't say for sure that screen time is...

But these two hours aren't accounting for the hours of screen time spent at home, followed by more at school.

From what I've heard from teachers, there's a chance they would like to engage with students more and with tech less.

For KGNU, I'm Juliana Krigsman.

That's all for this edition of How on Earth.