2. Using these data, what was the growth rate of the human population from 1999

Question

2. Using these data, what was the growth rate of the human population from 1999 to 2000? The growth rate was 1.338%. 3. If the human population were to continue growing at the most recent rate, how long would it take for the population to double in size? How long would it take if we could cut the current growth rate in half? It would take about 52.32 years for the population to double at the current growth rate, and about 104.63 year for the population to double if we cut the current growth rate in half. 4. If the human population were to continue growing at the most recent rate, how large would the global population be in 200 years? In 500 years?

Explanation / Answer

In the Year 2000, Human Population = 6.06 Billion
Annual growth rate = 1.338%
So every passing year, the starting population will increase by this percentage amount.
In 200 years, Human Population = 6.06 Biilion * (101.338%)^200 = 86.48 Billion
In 500 years, Human Population = 6.06 Biilion * (101.338%)^500 = 4662.69 Billion

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