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Best of both worlds: Geothermal energy that sucks CO2 from the atmosphere

Fast Company: Clean power from the Earth used to use a lot of water. But a new discovery means that water can be replaced with CO2, which gets left in the ground and doesn't alter the climate. Work by scientists at the University of Minnesota could result in a new way to capture heat from underground geothermal sources, which lets us generate clean electrical energy for our own uses while simultaneously disposing of some of the CO2 that's responsible for global warming. Though it sounds implausibly positive,...