Geothermal energy is making a comeback as engineers unlock deep-earth heat with new drilling and closed-loop technologies.

Geothermal energy taps into heat beneath the Earth’s surface to generate electricity or provide direct heating. Unlike solar or wind, it never stops. It runs around the clock, providing consistent, ...

Data gleaned from a large hole on the grounds of the Third Street Center in Carbondale indicated a viable future for a geothermal loop system – a highly efficient way to heat and cool buildings nearby ...