mcgillianaire (![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
mcgillianaire) wrote2007-09-30 04:45 pm
mcgillianaire) wrote2007-09-30 04:45 pm
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How Many People Have Ever Lived on Earth?
Between 45 billion & 125 billion - and even that's a guess!
"Any estimate of the total number of people who have ever been born will depend basically on two factors: (1) the length of time humans are thought to have been on Earth and (2) the average size of the human population at different periods. Our estimate here is that about 5.8% (6.2 billion out of 106.5 billion in 2002) of all people ever born are alive today." -Carl Haub
"Any estimate of the total number of people who have ever been born will depend basically on two factors: (1) the length of time humans are thought to have been on Earth and (2) the average size of the human population at different periods. Our estimate here is that about 5.8% (6.2 billion out of 106.5 billion in 2002) of all people ever born are alive today." -Carl Haub