Study warns of dramatic declines in fertility rates worldwide. As a result, we will find a "demographically divided world" that will have enormous consequences for economies and societies.
The proportion of live births of new children in the world will almost double in low-income regions from 18% in 2021 to 35% in 2100. Only six countries (Samoa, Tonga, Somalia, Nigeria, Chad and Tajikistan) will have fertility rates above replacement level in 2100, according to the study.