The center of the earth can reach 12000 degrees Fahrenheit. Just imagine if we could tap that heat for our own use. Well, geothermal systems do just that. Convection (heat) currents travel quite near the surface in some parts of the world. For instance, Iceland's capital city of Reykjavik is located near hot springs that power virtually the entire city. Learn more about this exciting, and virtually free source of energy by following the link below.

An aerial view of the city of Reyjkjavik, Iceland