For the first time ever, the living human population blew past eight billion people Tuesday, according to projections from the United Nations.
As humanity soars to population levels unseen in known history, adding one billion newcomers over the past 11 to 12 years, the rate of growth appears to be subsiding with humans reproducing at a dramatically lower clip than before and starting to age out. Experts believe it will take 15 years to add another billion.
Still, global life expectancy appears to be swinging up, increasing by roughly nine years to 72 between 1990 and 2019, per the U.N. That figure dipped to 71 in the aftermath of the COVID-19 pandemic, but experts believe those born in 2050 will likely enjoy an average life expectancy of 77.
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