Scientists are constantly searching for new, viable, alternative forms of energy to power our cars and homes.
Options are automobiles are fossil fuels (gasoline), clean diesels (modern turbo-diesels get about 30% better fuel economy than their gasoline counterparts), biodiesel (animal fat or vegetable oil), synthetic diesel (sulfur free), E85 (85% corn-based ethanol with 15% gasoline), CNG (Compressed Natural Gas), hydrogen, and electricity.
Options for our homes are fossil fuels, nuclear power, wind power, tidal (from the ocean) power, solar power, and geothermic power.
Do some research and present a discussion relative to your opinion of the best source of power for either your car or home. Be sure to remember such factors as, cost, efficiency, and viability of the source you choose.