There has been a remarkable global decline in the number of children women are having, say researchers.
Their report found fertility rate falls meant nearly half of countries were now facing a «baby bust» – meaning there are insufficient children to maintain their population size.
The researchers said the findings were a «huge surprise».
And there would be profound consequences for societies with «more grandparents than grandchildren».
The study, published in the Lancet, followed trends in every country from 1950 to 2017.
A Discussion on Global Health with Tom Bollyky (Podcast — November 8, 2018 — 34:00 min)