
The Congressional Budget Office has released new demographic projections, and they're alarming. Fertility is so low that U.S. population growth is predicted to be entirely due to immigration by the early-2030s. https://t.co/58BoXjNCrW


fertility drops much below 2.1 babies per woman, the population will shrink unless offset by immigration.
Greg Ip • The Little Book of Economics: How the Economy Works in the Real World (Little Books. Big Profits)
people born in the EU is set to decline by at least 40 million by 2050.72 Using a linear extrapolation, that’s 800,000 people needed each year just to keep populations stable. Because the population of the EU is ageing, the number of productive workers is declining even faster, by 1.4 million people per year.
Paul Behrens • The Best of Times, The Worst of Times: Futures from the Frontiers of Climate Science
The sperm decline signals changes that affect everybody. As some population experts and scientists put it, “a demographic time bomb” is on the horizon—future generations won’t be able to meet the financial and caretaking needs of an ever-increasing number of older adults and retired workers, given the declining fertility rate.