One common language for a better communication

I think that one of the world's problems causing many conflicts is a lack of one shared language for the whole humanity. We need to speak one language if we want to save the world. One could say “Don't re-invent the wheel”, it is said that English is an universal language and it is easy to learn. Well, I am afraid it is not true. Looking from the perspective of the English speaking people it could be so, but Spaniards have their Spanish, Frenchmen their French etc. They don't want to resign and the world will continue to be divided. In other countries English is spoken by the vast minority of people because of its difficult characteristics. The solution for this communication problem is simple, there is an international language called Esperanto which is designed to be as easy as possible for everyone. It has many words similar to English, German, Spanish and French. It is a democratic language beyond divisions. It is easy to learn and after around two years of learning it a student is able to speak fluently. So, if we want to communicate better we need it as soon as possible. Of course we don't need to abandon our own languages, Esperanto is thought to be a second language.