Global population projections are available from the U.N. Population Division, the World Bank, the U.S. Census Bureau, and the International Institute for Applied Systems Analysis (IIASA). 1 However, ...

Earth will be home to 8.8 billion souls in 2100, two billion fewer than current UN projections, according to a major study published Wednesday that foresees new global power alignments shaped by ...

For decades, we’ve been told that the world’s biggest problem is too many people. From Malthus in the 18th century to “The Population Bomb” in the 1960s, the warnings were dire: More people would mean ...

We have just published a new preprint — What demographic prediction can and cannot achieve — that argues that the choice of model drives nearly all the variance in long-run demographic projections, ...

The accuracy of multicountry population projections from the 1970s to the 1990s is assessed against current estimates. This assessment is meant to provide insight into the factors that affect accuracy ...