Will falling birth rates shift global births toward low-income countries?
Core argument: Research published in The Lancet projects 76% of 204 countries and territories will fall below population replacement birth rates by 2050, rising to 97% by 2100.
Research published in The Lancet projects three-quarters of nations are projected to fall below population replacement birth rates by 2050, leaving growth concentrated in a minority of low-income states in sub-Saharan Africa and Asia that face acute threats from resource shortages and climate change. The study of 204 countries and territories forecasts that 76% will dip below population replacement rates by 2050 — a number that will rise to 97% by 2100. The proportion of live births in low-income countries is projected to all but double from 18% in 2021 to 35% by the end of the century. Sub-Saharan African countries are forecast to account for half of global births by 2100.

