Getting power from ground heat is getting easier and ever. And, thanks to Google, we now know there is way more of it than we previously thought.

Jamming carbon deep underground has long been a proposed solution to our emissions problems, but it's expensive and rarely used. Now we can use the Earth's heat to make that gas work for us.

GTherm's new technology solves the unfortunate side effect of harvesting the Earth's heat--serious tremors.

Iceland has so much geothermal energy that it might build the world's longest undersea electric cable just to share it with the rest of Europe.

Iceland has long used hot water and steam produced by volcanic rocks to heat its homes. But now the country may have a new energy resource: magma.

The coal-powered state finds 78% more clean energy right under its feet, thanks to a grant from the search engine giant.

The Salton Sea is one of California's most intriguing attractions. Now the ultra-salty body of water may be able to claim a new title: lithium production center of the U.S.

Geothermal power plants are the ugly ducklings of the energy world; they're not as big or flashy as wind and solar plants, and most of their energy-producing magic happens underground. But a new $25 million geothermal plant being planned by the U.K's Eden Project and EGS Energy could give geothermal energy some much-deserved attention--the power source is more reliable than both wind and solar.