Geothermal power, electricity generated from naturally occurring geological heat sources

Earth sheltering, constructing a building into a hill side or Earth berm to reduce heating and cooling requirements

Earth cooling tubes, using ambient Earth temperature to cool and dehumidify air

Geothermal (geology), heat that comes from within the Earth

Geothermal desalination, the production of fresh water using heat energy extracted from underground rocks

Geothermal heating, a method of heating and cooling a building using underground heat

Geothermal heat pump, using the ambient temperature of the Earth to increase Seasonal energy efficiency ratio

Geothermal exchange heat pump, using the ambient temperature of the Earth to increase Seasonal energy efficiency ratio