While the weather in Iceland is often cold, wet, and windy, a nearly endless supply of heat bubbles away below the surface. In fact, almost every building in the country is heated by geothermal energy in a process with virtually no carbon emissions. So how exactly does this renewable energy work? Jean-Baptiste P. Koehl explores the two primary models for harnessing the planet's natural heat. [Directed by Charlotte Arene, narrated by Addison Anderson, music by André Aires].

Jean-Baptiste P. Koehl: Iceland's superpowered underground volcanoes

Iceland's superpowered underground volcanoes

Geothermal energy, using Earth's innate heat, offers a sustainable loop of electricity and heating with minimal carbon footprint.

Despite Earth radiating three times the energy humanity consumes, geothermal's potential is untapped, hindered by location and cost.

Advanced technologies aim to mitigate geothermal energy's seismic and pollution risks, promising a cleaner, sustainable energy future.