How much energy does it take to run this world together with you and me living on it along with so many othe rpeople and things either just sitting on it or eating away at this world? I am not sure about you, but I myself know that we need to do something about this or that it is not going to last so we must do our part as people living on this planet in order to provide each other with what will allow each other to live on for generations, so sustainable energy like earth 4 energy is very important.