When we claim that a source or a type of energy is "green," this means that it is ecologically friendly. In other words, this means that it causes little or no damage to our natural environment. Solar energy is considered to be green for several reasons. Solar energy is renewable, which means that it will not decrease or disappear because of our use. It will always be available to us. Moreover, the use of solar energy does not directly cause any pollution or damage to the environment.
