The global population is surpassing 8 billion this week— despite slowing fertility rates and aging populations, according to the U.N.
The average human is older than they used to be. Earthlings' median age in 2022 is 30.2 years old compared to 20.6 in 1974 when the global population was half what it is today,An aging population can be positive sign — people living longer and having fewer kids. Smaller families can mean women have better access to reproductive health care and are more confident their kids will live to be adults themselves.
But aging populations can also lead to stunted economic growth if elderly, non-working generations end up outnumbering the active workforce in a particular country.. Japanese nationals have a median age of 49, while for Nigerians, the median age is just 17.A fertility rate of 2.1 is generally considered "replacement level" — meaning there are enough births for the new generation to exactly replace the last generation.
She and other population experts are also concerned about a future where fewer people are working to support much larger, longer-living, elderly generations. Immigration will increasingly play an important role in preventing this kind of worst-case scenario in many countries —
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