World population is now :
How many people are there in the world? World population has reached 8 billion on November 15, 2022 according to the United Nations. World population live ...
populationmatters.org/
Population Decline Will Change the World for the BetterA future with fewer people offers increased opportunity and a healthier environment
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Sperm counts zero by 2045:
Large numbers of people are affected by infertility in their lifetime, according to a new report published today
NIH National Library of Medicine
Over the past half-century, the world has witnessed a steep decline in fertility rates in virtually every country on Earth www.ncbi.nlm.nih.gov/...
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Will sperm count be zero in 2045?
e360.yale.edu ›
If you extend the line of sperm counts for Western men, it hits zero in 2045. If that were to happen, the median sperm count would be zero, which means that half of men would be azoospermic — that is, having no sperm. The other half would have quite low sperm counts.
Article
Reactions to the now frequently predicted decline in worldwide human population... concerned about the huge environmental impacts a growing human population continues to have on the planet.....Rates are dropping like a stone-and on present trends expect the worldwide fertility rate to reach by 2045
these writers assume that population decline, however troubling or salutary, will be gradual. They attribute it to a series of factors such as rising education (especially of women), increasing urbanization, changing cultural attitudes and the costs of bringing of children. These scenarios of gradual, seemingly manageable decline are called into question by the work of fertility researchers who discovered that fertility rates are dropping like a stone and on present trends expect the worldwide fertility rate to reach zero by 2045. That’s not a typo..resilience.org
Jul 25, 2017 — Humans could become extinct if sperm counts in men continue to fall at current rates, a doctor has warned.
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Feb 27, 2021 — Epidemiologist Shanna Swan says low counts and changes to sexual development could endanger
The world is on track to be completely infertile by 2045, according to her projections. An environmental medicine professor is sounding the alarm on humanity's rapidly declining fertility rates — and she says chemicals in plastics are largely to blame.
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Following current projections, sperm counts of the median man are set to reach zero in 2045, Swan and co-author Stacey Colino, a health and science journalist, write in the book. That means half of all men would have zero viable sperm and the rest would have very close to zero.Mar 10, 2021
https://www.politico.eu › article › n...
Overpopulation: Racist ‘dog whistle’ or fuel for climate crisis? aljazeera.com/…
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Jul 29, 2017 — News last week that sperm counts in western men have halved confirmed what experts already knew
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(Other opinions):
"The Sperm-Count ‘Crisis’ Doesn’t Add Up
Reports of a decline in male fertility rely on flawed assumptions, a new study contends"
Male scientists have long waxed poetic on the contents of their testes. “Sperm is a drop of brain,” wrote the ancient Greek writer Diogenes Laërtius. Leonardo da Vinci drew the penis with a sperm duct that connected directly to the spinal cord. The 17th-century microscopist Antonie van Leeuwenhoek claimed that each sperm cell contained within it a folded-up human being waiting patiently to unfurl.
For nearly as long, scientists have fretted about sperm’s seemingly inevitable decline. Most recently, a series of alarming headlines — as well as a new book by an epidemiologist at Mount Sinai Medical Center in New York — warned that falling sperm counts might threaten the future of the human race. “It’s a global existential crisis,” said Shanna H. Swan, author of the book “Count Down.”
Most of these headlines can be traced to an influential 2017 meta-analysis by Dr. Swan and others, which found that sperm counts in Europe, North America, Australia and New Zealand had plummeted by nearly 60 percent since 1973. The authors screened 7,500 sperm-count studies from around the world, weeded out most of them and ultimately analyzed 185 studies on 43,000 men worldwide
.Sperm count has other limitations as a metric. It takes around two months for stem cells in the testes to develop into new sperm, meaning that any single count is merely a snapshot of an evolving landscape.
This decline in male fertility is the subject of research and debate. Proposed explanations include lifestyle factors, such as changes in diet and physical activity levels, and increased exposure to endocrine disrupting chemicals, such as those found in plastics.[6][7] Some scientists[8] have questioned the extent of the crisis, saying that sperm-count studies are geographically sparse, often fail to account for a subject's age, and use the single metric of sperm count as an indicator of male fertility.[9] The scientific community, however, generally acknowledges increasing male infertility as a men's-health issue.en.m.wikipedia.org/…
2010s–present
By the 2010s, it was clear that there had been a significant, steady decline in sperm count and semen volume. A 2017 meta-analysis led by Hagai Levine from the Hebrew University reported decreases in sperm concentration of 52.4 percent and in sperm count of 59.3 percent, from 1973 to 2011 in Western countries (Australia, New Zealand, Europe, and North America).[25] Two other studies presented at the 2018 American Society for Reproductive Medicine (ASRM) scientific congress had similar findings: reduced sperm counts and motility during the 2000s.[11] A 2012 paper published by French researchers and Yeshiva University's Institute for Public Health Sciences in the Journal of Human Reproduction studied French males from 1989 to 2005 and concluded that sperm counts and the proportion of normal, motile sperm fell by 32.2 and 8.1 percent, respectively
"the United Nations predicts dozens of countries will have shrinking populations by 2050. This is good news. Considering no other large animal’s population has grown as much, as quickly or as devastatingly for other species as ours"
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from Nature.org:
"The average carbon footprint for a person in the United States is 16 tons, one of the highest rates in the world. Globally, the average carbon footprint is closer to 4 tons."
About 20% of greenhouse gases in the US come from homes amp.cnn.com/…
HELP SAVE THE PLANET AND OURSELVES:
*Turn out the lights when- not in use/use less*
- Turn down the heat or AC
- vent out at night if cooler
- Avoid creating nighttime light pollution
- Don’t waste water
- use recycled paper toilet paper or bamboo products
- Avoid burning wood (or other things), as wood fires are both pollutant and carcinogenic
- Don't use pesticides
- Limit your use of cars and planes (if possible)
- Don't use gas powered vehicles
- Take out grass and put in a garden or pond (or xeriscape )
- Mow, blow, and whack with electric or by hand
- Plant for the animals (bees, birds etc)
- Plant trees
- Don't micro manage yards, go wilder
- Try to use solar
- Take a bus, trolley or train
- Encourage your city/town to use electric buses
- Use energy efficient products or products that work on clean fuels
- Reduce dependence on non-biodegradable items
- Walk, bike or carpool
- Reuse items- give to Goodwill or Craig's list rather than dumping
- Cut down or cease eating meat
- Use reusable carry bags for grocerie; second choice, paper bags; not plastic
- Compost
- Save the bees
- Be informed
- Write your representative, sign petitions
- Elect pro-environment candidates and demand action
- Support the Green New Deal
- Get involved
- March
- Blog about the environment
- Control population
- * GROUND SOURCE HEAT PUMP *
- Cooling the house for a month is maybe $10 worth of electricity, and this is the most efficient way to do it,” said Maioli. During the coldest winter month, their highest heating bill was around $70....archive.li/...
Deforestation
Every day almost 2 million trees are cut down to make tp roll, according to research by environmental impact consultancy Edge
www.theguardian.com
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