Today, how most developed countries produces energy is mainly, petroleum coal, and natural gas. But, as time progresses, we are seeing more and more nuclear power plants. What these power plants do is, they split atoms which produce power, which is called fission. What scientist now are trying to invent is a way to get power of fusion, which combines atoms to produce energy. Fusion will be a huge step um from the energy resources we use today. Some of the benefits of fusion over fission are: It is much cheaper, is produces even more power, it doesn't cause radiation, and it doesn't have any radioactive outputs such as depleted uranium rods. Now scientist are getting into the entitlement stages of the process and fusion reactors are dated to be in a workable in about five years. 
