4. Magma

sources of renewable energyThere is no doubt that there is a lot of energy in a volcano as it erupts and molten lava gushes out. In an attempt to harness this powerful source of renewable energy, scientists in Iceland have experimented with drilling deep below the Earth’s surface where the temperatures range from 400 to 1,000 degrees Celsius. There they can tap into this geothermal energy source that researchers think may produce much more energy than other geothermal sources.