An increase in life expectancy and a decline in birth rates means that population increases in the near future will more and more be in the form of people livin

An increase in life expectancy and a decline in birth rates means that population increases in the near future will more and more be in the form of people living longer, rather than increases in the number of new people. After a while the decline in birth rates will catch up, and population will decline. Japan and Europe are furthest along this curve, but rest of world looks poised to follow.