Very interesting statistics. The world population reached 7 billion last Monday. We are putting an enormous pressure on mother nature, so lets treat her with kindness and be aware of our environmental responsibilities.
The U.N. has estimated a population of 9.3 billion by 2050, and there is expected to be more than 10 billion people on Earth by 2100."
http://www.cnn.com/2011/10/29/world/7-billion/index.html?hpt=hp_c2
[update: Oct 30th On Halloween day, you should celebrate humanity.