There is no existence of world government. There are only talks about it. An example of worry, there is a thought to be brought up now. An example of the United Nations World Health Organization and World Trade Organization can be given but this is not World Government. There are EU, G7, G20. ASEAN, Arab league, Africa league and SAARC are present but they all are divided in geographically and demographically. This time there is no world government in the world.