Considerations with respect to renewable energy applications in Belgium and Europe

The sun is the ultimate source of coal, oil, and natural gas which is a fossilized solar energy, collected and stored in sedimentary rocks over hundreds of millions of years. Once they are used up, it will take a similar length of time for them to be replenished. Thus, people are still urged to use renewable energy sources because three reasons. One of the main reason is to simply reduce pollution in the environment.