Sadly, the way babies are being continually aborted, not going to happen.
World wide, the doubling time of the human population is about the human population growth.
12
75
33.4 years for south Africa to double
how long did it take to double from 3 billion to 6 billion
With a 2009 rate of natural increase in Mexico of 1.13%, its population would be expected to double in ~61 years.
100 years
Depends on how much power thirst you drink.
The worlds population was 3.3 billion in 1965, it is now 6.7 billion so it that instance of doubling took 34 years .
mankind's don't need time to double the size. becauze they are very fast in doubling the population.
The rule of 70, for Population growth, is the process whereby you divide 70 by the population growth rate to have an estimate of how long it will take, in years, for the Country's population to double.
20 years
27.6 yearst = 0.69 / r where r is the growth rate
African countries take longer to "double time" meaninh the time it takes for a county's population to double its number
The world population reached one billion in 1804 and seven billion in 2012. That's a difference of 208 years.