Long-term population growth: Although exponential growth can often be used to model population growth accurately for some periods of time, there are inevitably, in the long term, limiting factors that...

Long-term population growth: Although exponential growth can often be used to model population growth accurately for some periods of time, there are inevitably, in the long term, limiting factors that make purely exponential models inaccurate. If the U.S. population had continued to grow by 3% each year from 1790, when it was 3.93 million, until today, what would the population of the United States have been in 2000? For comparison, according to census data, the population of the United States in 2000 was 281,421,906. The population of the world was just over 6 billion people.