2012 is almost here, and according to Mayans Theory, it may be the end of the world on 21st Dec 2012. Although it is still unlikely that we will have the doomsday in 2012, some of the extinction events that are going to happen, or have happened already in the past are listed below.
# 1 – Human Cause
Because of a lot of outstanding developments in different aspects of life, mainly in field of science, Humans have started to think that nature cannot harm them. But the truth is totally different from that because humans themselves have developed methods of self-destruction.
For example, the nuclear weapons – according to figures, there are enough nuclear weapons on earth, made by humans, that can easily wipe out the life from the surface of the planet earth. Only one nuclear war can destroy the planet.
I hope and pray that the planet earth will remain peaceful. Otherwise we are on the edge of extinction already by own human hand made weapons.
# 2 – Gamma Ray From Sky Can Wipe Out Life from Earth
Just think that you are sitting under the sky in night and staring at the stars and suddenly a light flashes up in the sky, and a star explodes. Before you can say anything, everyone on Earth will die.

