There are two forms of tinnitus: objective and subjective. Objective tinnitus means that both you and other people can hear certain noises in your ears. This is usually due to abnormal blood vessels in and around your ears.
The main advantages of solar energy are that it is clean, able to operate independently or in conjunction with traditional energy sources, and is remarkably renewable.
Geothermal energy is clean because it can be generated without burning fossil fuels. Geothermal plants release a fraction of the carbon dioxide produced by fossil fuel plants, and they create very little nitrous oxide or sulfur gases [source: U.S. Department of Energy].