The last two wars that were fought on a global level brought large scale destruction of human life. The after effects were grave and a large majority of nations in the world had to deal with them for a long time. The consequences that arise post a mega-war not only impact the economy of the world but also bring in health hazards that threaten the survival of human life. If there is a World War III, it would most probably be fought with nukes. Here is a list of top 10 situations that could possibly occur after the World War III.