The untapped energy source that could power the planet

Deep beneath your feet is a molten ball of energy the same temperature as the surface of the sun -- an immense clean energy source that could power the world thousands of times over, says technologist and climate activist Jamie C. Beard. How do we tap it? She lays out a surprising solution, and an unlikely alliance, to harvest geothermal energy from the Earth's core and get it to anywhere in the world.