(Audrey Richardson/Chicago Tribune) In cold weather, the fluid circulating through the geothermal system’s underground plastic pipes absorbs the relatively warm temperature of the earth and brings it ...

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Far below the Earth's surface is an energy source with huge and perpetual potential: geothermal heat. But the forces in its ...

The center of the Earth is so hot that it could satisfy the entire world’s energy needs. But can scientists safely tap into ...

After years of fits and starts, a modern concrete building is emerging from scaffolding and all the windows appear to be in.

A new report indicates geothermal energy could economically supply up to 64% of the projected data center energy demand ...

A Red Mountain property owner intending to install a geothermal system as part of a home-construction project has met opposition from the neighborhood’s governing association in a dispute now in ...

Greenpoint is about to get a lot greener. A new all-geothermal-powered apartment complex — the largest in the state — is set to be built along the trendy Brooklyn neighborhood’s waterfront ...

He said Hawaii collects royalties from geothermal plants on Hawaiian home lands — which is to say, from Puna Geothermal Venture, the only geothermal plant that operates in the state. Geothermal ...

The heat is on to launch a project that could lead to large-scale extraction of geothermal heat, a stable and abundant energy source located a mile-and-a-half underground. Increased access to and ...