How has size and growth rate in human population changed in the last 200 hundred years?
Sine the Industrial and Agricultural Revolutions the growth rate of the human population has increased rapidly. Originally our growth rate was slow and steady (with a few major decreases from things like plagues). After those revolutions our life was made easier, safer, and we had huge advances in medicine that decreased the death rate. The birth rate did not slow down, however. This has caused the increase in our growth rate. Originally (more than 200 years ago) our growth rate was less than 0.1%. Since the Industrial Revolution our rate has been higher than 1% sometimes even higher than 2%. Currently our rate has started to come back down again but it is still above 1%. Meaning that we get about 90 million new people are being born a year. About 3 a second. Essentially our population size and growth rate have skyrocketed in the last 200 years.
