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The geothermal industry is bubbling up in Colorado.

From American Public Media, this is Marketplace Tech.

I'm Megan McCarty Carrino.

Combating climate change will likely require a multi-pronged approach to renewable energy generation.

After all, it's not sunny or windy everywhere all the time.

Geothermal energy, which harnesses the natural heat generated by the Earth,

can significantly shrink the carbon footprint of heating and cooling buildings.

Those systems are currently just a small part of the HVAC market, but the Department of Energy wants to accelerate production by 10% a year.

Reporter Ray Solomon at KUNC in Northern Colorado has more.

There's a field near the airport in the tiny town of Hayden, Colorado, that may look

like just a flat expanse of patchy grass and dirt, but town manager Matthew Mendisco

says there's a whole lot going on, just not on the surface.

You wouldn't even be able to see our project, because it's all underground, basically.

What you can't see is the start of a major geothermal network built earlier this year.

Eventually, this carbon-free technology will heat and cool a new business park.

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