High temperatures but also climate change are having an important impact also on the demographic decline: that’s why
Heat waves and air pollution can also endanger fertility. It is discussed in Paris during The 41st annual congress of the European Human Reproduction Society and Embryology (Eshre)in which the theme was presented as a central in the new report on the effects of climate change on reproduction.
Just as they are recorded in Paris tips of 38 ° Cthe Eshre highlights how the increase in temperatures and the increase in air pollution are associated with “a worsening of the quality of the male seedwith alterations in the spermatic parameters, reduction of the number of sperm and DNA damage. The ovarian reserve in women can also be reduced. “
The causes of the decrease in fertility
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According to the scientific association, About 3 billion people live in vulnerable areas for climate changewith consequences that go far beyond fertility, involving pregnant women, children, elderly and fragile subjects. As explained toAdnkronos by the gynecologist Alberto Vaiarelliscientific coordinator of the General Center of Rome, in recent years “The causes of infertility appear less and less attributable to individual factors It is increasingly linked to environmental elements. “The expert also draws attention to the link between heat and male fertility:”Also an increase of only 1-2 degrees It can compromise spermatogenesis. Clinical and laboratory studies demonstrate a Significant drop in the number and motility of the spermatozoa In the presence of chronic exposures at high temperatures. “And Italy, where temperatures are often exceeding 40 ° C, is not risks.

The impact of climate change
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It is clear that at this point the interventions on the environment are no longer postponed. Just the Eshre urged “Quick and coordinated policies to reduce CO2 emissions And improve air quality within the next 20 years, in line with the European Green Deal, with a massive investment in the research on the effects of pollution on fertility “. In fact, climate change can also have an impact on demographic decline:” Climate change is not just a threat to the environment: It is a challenge for the very survival of the human specieswhich is also losing the push to procreate for a series of social and economic reasons, “explained Vaiarelli.
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