Demand for Geothermal Heating Heats Up

Heat from deep within the earth is an underused source of renewable energy. The United States is the world’s largest producer of geothermal energy, but it makes up less than 1 percent of the nation’s power generation. By contrast, geothermal plants in the Philippines and Iceland contribute around 30 percent of their electricity production. Now, geothermal power is heating up in Australia. Faith Lapidus reports.

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