The major pillars for renewable energy are hydro, wind and solar, although most renewable energy comes either directly or indirectly from the sun, the importance of renewable energy in the future of a society or nation cannot be overemphasized.
Fossils are going away, the way they are ending doesn't make anyone happy. We live on 21st century and yet the only source of energy is gas and oil. It is time to say goodbye to fossils and adopt green energy. Greenment care about the environment and here is a small articles describing importance and types of renewable (green Energy).