Human sperm counts falling drastically: existence threatened?

https://www.theguardian.com/us-news/2021/feb/26/falling-sperm-counts-human-survival

“Shanna Swan, an environmental and reproductive epidemiologist at Icahn School of Medicine at Mount Sinai in New York, blames ‘everywhere chemicals’, found in plastics, cosmetics and pesticides, that affect endocrines such as phthalates and bisphenol-A.
‘Chemicals in our environment and unhealthy lifestyle practices in our modern world are disrupting our hormonal balance, causing various degrees of reproductive havoc,’ she writes. She also said factors such as tobacco smoking, marijuana and growing obesity play a role.”

“Between 1964 and 2018 the global fertility rate fell from 5.06 births per woman to 2.4. Now approximately half the world’s countries have fertility rates below 2.1, the population replacement level.”

“Now, Swan says, following current projections, sperm counts are set to reach zero in 2045.”

For many years, various sources have warned the public of the dangers of overpopulation (pollution, loss of natural habitat, to name just two). Too many people on the planet; it can’t go on this way, the experts cried! Now the opposite seems to be happening and the mavens are worried about population getting too low! Perhaps the falling sperm count is nature’s way of bringing things back into balance. Clearly humanity will not let the reproductive rate fall to zero. But a smaller population is not automatically bad.

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