OSHER 766 - Alternative Energies - Miracle or Mirage?

The United States runs on energy from a variety of sources, mostly non-renewables like oil, gas, and coal. We have all heard about alternatives like wind, solar, and geothermal, but can they really replace coal and oil? If so, how will it work and how much will it cost? What are the advantages, disadvantages, and prospects for adopting alternative energy sources? Because of Utah's distinctions of being one of the nation's primary energy suppliers---and having some of the nation's worst air---this information is worth knowing.