fective energy. Geothermal energy, another clean source of energy, will greatly reduce the amount of oil the U.S. has to import. Energy obtained from the earths natural heat is explained on the web site Geothermal Energy:Geothermal energy can be harnessed from the Earths natural heat associated with active volcanoes or geologically young inactive volcanoes still giving off heat at depth. Steam from high-temperatures geothermal fluids can be useful to drive turbines and generate electrical power, while lower temperature fluids provide hot water for space-heating purposes, heat for greenhouses and industrial uses, and hot or warm springs at resort spas. (1)Geothermal energy is obtained by tapping into the heat of the Earth. Augusta Goldin explains that this heat comes from molten magma deep in the Earth. Periodically, this magma rises, heats the solid rock above, and breaks through. Some of this heat is conducted to the next layer, porous rock filled with water. Then the water heats up, creating a hot-water aquifer that we can use to tap into the massive heat reserves of Earth (130). We can use the earth as the heat source for steam-driven generators because of the incredibly hot molten magma heating certain areas of the earths crust. This source of energy is limitless and is not hazardous to the environment. By maximizing the usage of clean and safe alternative resources, the United States will eliminate its dependency on foreign oil and will promote a cleaner, more stable environment. With the advanced technology of todays world, the United States should begin a worldwide changeover to clean, renewable alternative energy sources including solar, wind, hydroelectric, and geothermal. By taking advantage of these alternative energies we can protect the world from pollution and the economic detrimental by products fossil fuels. Implementing the most up-to-date technology in the field of energy can protect the world now and insure...