This article is part three of a short series for October’s National Energy Awareness Month by National Geographic Geography Intern Hannah Dempsey. Find part two on biopower here, and part one on tidal energy potential here.  Reliable. Constant. Ancient. Geothermal energy is as old as the Earth itself, and we take advantage of this naturally occurring phenomenon to make electricity. Geothermal energy powers three and … Continue reading Truly Alternative Energies: Geothermal Power