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Fading Human Fertility: Causes & Consequences

https://www.bbc.co.uk/news/health-5...-Q-t4Ssf7vtrtnOqQddAiwzCUaEHdTtyiQzkfSYFGZps8

Fertility rate: 'Jaw-dropping' global crash in children being born
The world is ill-prepared for the global crash in children being born which is set to have a "jaw-dropping" impact on societies, say researchers. Falling fertility rates mean nearly every country could have shrinking populations by the end of the century. And 23 nations - including Spain and Japan - are expected to see their populations halve by 2100. Countries will also age dramatically, with as many people turning 80 as there are being born.
What is going on?
The fertility rate - the average number of children a woman gives birth to - is falling. If the number falls below approximately 2.1, then the size of the population starts to fall. In 1950, women were having an average of 4.7 children in their lifetime. Researchers at the University of Washington's Institute for Health Metrics and Evaluation showed the global fertility rate nearly halved to 2.4 in 2017 - and their study, published in the Lancet, projects it will fall below 1.7 by 2100.
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Naughty_Felid said:
Falling sperm counts may see the end of us...


https://www.theguardian.com/us-news/2021/feb/26/falling-sperm-counts-human-survival
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Hmm im not sure her research makes as much sense as she thinks it does, she says, to quote,"the impending fertility crisis poses a global threat comparable to that of the climate crisis." Surely the decline of mankind is a boon when it comes to the survival of the planet, some might say it is essential to the planets survival that the population reduces, it reminds me of Dan Browns novel 'inferno'.
 
Not a surprise to me.

A few couples in my circle of friends have experienced fertility problems even in their early to mid-30s.

Add to that a combination of conscious decision or societal pressure to defer parenthood to much later in life than was the norm historically and the trend for smaller families in the developed world, and you have a major demographic problem on your hands.
 
Yithian said:
Not a surprise to me.

A few couples in my circle of friends have experienced fertility problems even in their early to mid-30s.

Add to that with the conscious decision or societal pressure to defer parenthood to much later in life than was the norm historically and the trend for smaller families in the developed world, and you have a major problem on your hands.
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Why is it a problem?
 
Hey honey, we need to have lots of sexytime, it's for the good of humanity!
 
Yithian said:
Is that politics?

I thought it was elementary economics.

I'll play fair and report it with a instruction to delete if I'm wrong.
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The increasing population is putting unsustainable strain on the planets resourses, a reduction of the population would secure a future for the next generations (how much is dependant on how much the population decreases) as things stand with the current population increase the planet is not going to survive the age of man for another millenia

The human population is 7.5 billion and counting — a mathematician counts how many humans the Earth can actually support

"Though the detailed future of the human species is impossible to predict, basic facts are certain. Water and food are immediate human necessities. Doubling food production would defer the problems of present-day birth rates by at most a few decades. The Earth supports industrialized standards of living only because we are drawing down the "savings account" of non-renewable resources, including fertile topsoil, drinkable water, forests, fisheries and petroleum."

https://www.businessinsider.com/how-many-people-earth-can-hold-before-runs-out-resources-2018-7
 
Yithian said:
A) Malthus.
B) This is not an either-or scenario.
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You argued economics, i gave you a mathamatical overview of the situation ecomonics =mathamatics.
Emotions cloud judgements, im looking at the issue logically (some may say coldly but hey) im not emotionally involved in this discussion, im just looking at facts and the facts are the way the population is increasing, (even with recent decreases in fertility in the developed world) it is unsustainable and without major population decreases the planet will not survive.
 
Souleater said:
You argued economics, i gave you a mathamatical overview of the situation ecomonics =mathamatics.
Emotions cloud judgements, im looking at the issue logically (some may say coldly but hey) im not emotionally involved in this discussion, im just looking at facts and the facts are the way the population is increasing, (even with recent decreases in fertility in the developed world) it is unsustainable and without major population decreases the planet will not survive.
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Have you considered a career in Starfleet?

More seriously, I don't disagree with you at all.

My point is that it isn't a straight case of choosing a larger global population and environmental catastrophe or a sustainable population with more demographic problems and less deleterious environmental harm; the only viable solutions will be compromises whereby we take measures to address both issues.

Although, as I'm fond of saying, the Stone Age didn't end because they ran out of rocks. There's hope that technological advances could go a long way in alleviating the pain of weening humanity off its oil dependency.
 
It's because too many people are cracking one off over online porn.






Not, me, someone told me about it...
 
Yithian said:
Is that politics?

I thought it was elementary economics.

I'll play fair and report it with a instruction to delete if I'm wrong.
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I reviewed it - it was at best borderline, though the economic argument is valid. Post and reply directly citing it deleted.

Play on.
 
Naughty_Felid said:
Falling sperm counts may see the end of us...
https://www.theguardian.com/us-news/2021/feb/26/falling-sperm-counts-human-survival
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Souleater said:
Hmm im not sure her research makes as much sense as she thinks it does ...
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This opinion piece by university medical professor and health journalist Tim Moss takes issue with Shanna Swan's research and the conclusions in her newly-published book (the subject of the above comments).
Are chemicals shrinking your penis and depleting your sperm? Here’s what the evidence really says

A doomsday scenario of an end to human sperm production has been back in the news recently, now with the added threat of shrinking penises.

Professor Shanna Swan, a US epidemiologist who studies environmental influences on human development, recently published a new book called Countdown.

In it, she suggests sperm counts could reach zero by 2045, largely owing to the impact of a range of environmental pollutants used in manufacturing everyday products: phthalates and bisphosphenol A (BPA) from plastics, and per- and poly-fluoroalkyl substances (PFAS) used, for example, in waterproofing. Under this scenario, she says, most couples wanting to conceive would need to rely on assisted reproductive technologies.

She has also warned these chemicals are shrinking penis size. ...

Such extraordinary claims require extraordinary evidence. I would argue the evidence is not strong enough. ...
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FULL STORY:
https://theconversation.com/are-che...rm-heres-what-the-evidence-really-says-160007

Also Posted At:
https://www.sciencealert.com/are-en...shrinking-your-penis-and-depleting-your-sperm
 
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