Nuclear+Energy


 * __Nuclear Fission__**
 * Existed since the 1950s
 * 20% of electrical power comes from nuclear power plants
 * 440 reactors worldwide and 29 under constrution
 * Adv. The most environmentally friendly energy
 * Dis. Creation of radioactive waster, Public fear of nuclear accidents such Three Mile Island
 * Currnetly we are still developing repositories to store nuclear waste
 * Yucca Mt.in Nevada has been approved for development could store up to 70,000 ton [[image:http://t3.gstatic.com/images?q=tbn:ANd9GcQ1dnkxwoiKGSvK9VObrjO1eD5FsMw0Sph4pPMVPitmQXRHB7gyGQ width="224" height="179"]]


 * __Nuclear Fusion__**
 * In a nuclear fusion reactor deuterium and tritium atoms fuse to create helium and fast-flying neutrons
 * The resulting neutrons escape form the reaction chamber carrying vast amounts of kinetic energy
 * Current Issue: Fusion hasn't reached the break-even point meaning the amount of energy produced does not equal the amount of energy consumed.
 * Advantages: Do not produce air pollants, the atoms required for fusion are in unlimited and easily produced on site, Radioactive waste is much smaller than fission reactors
 * Disadvantage: The cost of building fusion facilities exceeds the values of the returns since it takes about 20 years recover investments put into the facility.
 * Most scientists believe that only developed countries will be able to afford nuclear fusion plants so in the long run it may not be the most efficient to continue developing them. [[image:http://t0.gstatic.com/images?q=tbn:ANd9GcQc0Rq4-w-jdt67jifKGcQF5OGL8634FeTSQE9MjJr2GezjsX-8 width="269" height="188" align="right"]]Other Alternative Fuels