There is no good evidence in support of that. If all humans would die, that would not be the end of the world, that would only be the end of all humans and if the earth would explode that would not be the end of the world that would only be the end of earth. There is no good evidence that the end of humans, the earth or the world is near. If you are extremely religious you might think something as silly as the end of the world being near, but there is no rational reason to believe such a ridiculous notion. The world has trillion billion years left, the earth has at least 1 billion years left and for humans. Not sure because of war and the monetary system but i would say at least 1000 years or even millions or even billions of years if we stop using the monetary system at some point in the future.