Scientists have been telling us for a very long time that if humanity does not begin to get smarter about the way it uses energy, the planet’s environment itself could be ruined. Our reliance on fossil fuels such as diesel and gasoline is obviously hurting us, but things are starting to change. Those finite resources which will one day run out are now being gradually scaled back in many parts of the world in favor of renewable resources. The term renewable resource refers to the fact that these are freely available and relatively unlimited resources that we have actually been using for longer than we might thing. The difference is, we now need much less to create usable electricity thanks to the far superior technology available to us today. Let’s take a look at each of the most popular types of renewable energy out there today.