The number of people in the world increased more than 4-fold during the 20th century. What will the future look like?
One of the big lessons from the demographic history of countries is that population explosions are temporary. For many countries, the demographic transition has already ended, and as the global fertility rate has now halved we know that the world as a whole is approaching the end of rapid population growth. To read more, use the button below to open the original external article.