Fifty years ago, nuclear power seemed to hold the promise of solving the world s energy problems. It was very abundant and produced large amount of energy. It was soon realized, however, that the toxic radioactive waste generated from nuclear facilities was difficult to dispose of and posed a big threat to humans and the environment. There are several countries that have do depend heavily on nuclear power currently. Several other forms of energy are utilized in small pockets throughout the world.
Wind power is used where large flat expanses of land allow large wind speeds to accumulate.
Portions of the plain states and the desert southwest in the U.S. have many windmills. Many Scandinavian countries also use large amounts of wind power. Solar power can only be used where it is sunny throughout much of the year. Ethanol is a renewable resource that is produced when corn is fermented. It is currently mixed with gasoline to produce a motor fuel that is better for the environment.