House at Espoo Kimmo Huosionmaa Overpopulation is the biggest threat to mankind. This is very commonly told the fact and the question why overpopulation is so bad problem is that human being needs space. When the population of people rises, they would need more space, and that would cause wars if some nation wants more living space like Nazis did in 1930's. If the population grows very big, there would be internal pressure for beginning the war against some neighbors. If in those conflicts are used weapons of mass destruction the results would be devastating. But there have been rumors that in some countries like South Africa, the governments have planned to decrease the population by using biological weapons like hepatitis, and other STD for decreasing the population of their own people. In some plans, the mumps-virus would be put in the drinking water, and that would cause the lifetime sterilized for men. When we are talking about the birth control, we must unders...