RIO DE JANEIRO, BRAZIL - By 2100, Brazil's population is expected fall below 180 million, according to the study "Population Projections by Age and Sex for Brazil to 2100" by the Institute for Applied Economic Research (Ipea).
In the study, researchers Gabriela Bonifácio and Raquel Guimarães used different methods for population analysis.
The extended projection period chosen - from 2010 to 2100 - is not standard in population forecasting. According to . . .