By 2100, the Census Bureau has predicted that the largest age group will have changed from 10-14 year-olds today to 35-39 year-olds. The bureau also predicted that the global population will have ...

Earth will have a dystopian population of just 100 million by 2300 as AI wipes out jobs turning major cities into ghostlands, ...

It takes 2.1 births per woman to maintain a population size, barring immigration. More than half of the world’s countries have fallen below that rate. By the 2070s, senior citizens (age 65 and ...