By 2100, new UN figures show that 4 of today’s 10 most populous nations will be replaced by African countries. Brazil, Bangladesh, Russia and Mexico—where populations are projected to stagnate or decline—will drop out. In their place: Democratic Republic of the Congo, Ethiopia, Tanzania and E ... gypt. All 4 are projected to more double in population. Top 10 rankings in population growth by 2100 include only 2 non-African nations—Pakistan and the US. c1China will shrink by 374 million fewer people—more than the entire US population. more

The world’s population is projected to grow from 7.7 billion in 2019 to 8.5 billion in 2030 (10% increase), and further to 9.7 billion in 2050 (26%) and to 10.9 billion in 2100 (42%). The population of sub-Saharan Africa is projected to double by 2050 (99%). Other region ... s will see varying rates of increase between 2019 and 2050: Oceania excluding Australia/New Zealand (56%), Northern Africa and Western Asia (46%), Australia/New Zealand (28%), Central and Southern Asia (25%), Latin America and the Caribbean (18%), Eastern and South-Eastern Asia (3%), and Europe and Northern America (2%). more