plugging into the power of the planet.

Solar and wind power realy upon factors that can´t be pretited: ample sustained breeze. But geothernal power , whitch taps the scorching temperature that radiate outward fron the anet-- the only variables are how deep you need to dig before finding it and at what cost. And as princes for gasoline and natural gas creep ever upward geothecal seems increasingly like a bargain. A 2006 report bye the Massachusetts Institute of Technology indicated that witch a $1 billion investment in the coming years, geothermal energy could supply 10% of all U.S power needs by 2050, on a par with nuclear and hydroelectric power. The world role model in this process will be Iceland, Whose Nesjavellir geothermal plant is shown here; 90% of the national´s power is generated ftrom geothermal and hydroelectric surces.