It is believed that life on Earth will end up someday somehow. It end everything up, it is one of the deadliest way which will involve mass destruction. Here are a few probable Ways World End Likely.
The fear of nuclear war is reduced or even forgotten after the one that took place in the last century. But the threat still remains and may result in total destruction of the world if the nuclear weapons are reach wrong hands. Till today 9 countries are armed with nuclear weapons among which 5 are the members of safeguarding Nuclear Non Proliferation Treaty and 4 are left doing whatever they want.