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Geothermal heat is another promising sustainable energy source.
The Milgro Nurseries greenhouse near New Castle, Utah, is one of the approximately 40 greenhouses nationwide that benefit from the direct use of geothermal energy. The Newcastle geothermal resource is located at the southeastern margin of the Escalate Valley, in the transition zone between the Basin and Range and Colorado Plateau physiographic provinces. Geothermal heat is another promising source of sustainable energy under development.
Credit: Robert Blackett, Utah Geological Survey
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