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Geothermal: Earth’s infinite clean power

April 17, 2025 · 15 min

Show notes

Deep beneath the Earth’s surface, a molten stew of metals radiates vast amounts of energy. Prof. Roland Horne, Director of the Stanford Geothermal Program, joins TILclimate to talk about the “geothermal energy” technologies that tap this underground resource for electricity, manufacturing, and home heating and cooling. He also shares the recent breakthroughs that have begun bringing this always-on, clean, renewable source of energy to new places and applications.

For a deeper dive and additional resources related to this episode, visit: https://climate.mit.edu/podcasts/e5-geothermal-earths-infinite-clean-power

For more episodes of TILclimate by the MIT Climate Project, visit tilclimate.mit.edu.

Credits

Laur Hesse Fisher, Host and Senior Editor

Aaron Krol, Writer and Executive Producer

David Lishansky, Editor and Producer

Grace Sawin, Student Production Assistant

Michelle Harris, Fact Checker

Music by Blue Dot Sessions

Artwork by Aaron Krol

All episodes of Ask MIT Climate

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