Many new geothermal plants can use water heated to as low as 57 degrees Celsius (135 degrees Fahrenheit). This system, called a binary cycle power plant, uses the hot water to vaporize another liquid with a lower boiling point. The secondary fluid then turns the turbines.
Using magma to boost the power of geothermal plants is way to boost energy output, as Discovery News reported.
Another, still theoretical, type of geothermal energy production could also serve as a carbon sequestration system. Discovery News reported on the possibility of using carbon dioxide captured from fossil fuel energy plants in place of water in geothermal power plants.
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Climate change isn't the only problem geothermal energy could help solve. Some of the world's least electrified regions, like Central America and Africa's Rift Valley, have tremendous geothermal potential.
"Combating climate change while simultaneously getting energy to the two billion people without access to it are among the central challenges of this generation. Geothermal is 100 percent indigenous, environmentally-friendly and a technology that has been under-utilized for too long," said Achim Steiner, UN Under-Secretary General and UNEP Executive Director in a press release.