Climate change can affect the sex of the child




Climate change is associated with an increase in average global temperatures and more frequent extreme weather events will have a significant impact on humanity, including the natural balance between the sexes. A new study found that after an abnormal rise in temperature in Japan was born less than boys.

On the relationship between the sexes newborn affected by a number of factors. For example, pollution in central Scotland has changed the proportion of fertility in favor of females. At the same time, military action can change this ratio in favor of one or the other sex. The statistical data. But despite the high birth rate of girls in tropical countries, in the warm season in the north of Finland, more boys are born.

After analyzing the data on births and spontaneous abortions over the period from 1968 to 2012, Japanese scientists found an increase in fertility female infants (mothers not to continue wearing boys) due to the temperature difference. The findings are published in the journal Fertility and Sterility. In addition, an unusually hot summer, which is replaced by a cold winter, also changes the sex ratio at birth.

Animal studies have confirmed the findings of scientists – climate change affects the proportion between the sexes newborns.

Rainy periods contributed to the birth of a male chimpanzee. At higher temperatures the sea turtles lay more eggs that later hatch into females. In fact, the floor is laid in many reptiles, depending on the ambient temperature.

But the people – not reptiles, so Japanese researchers have warned that they could not say with 100 percent certainty that the disproportion between the sex ratio at birth rates caused by climate change. Nevertheless, their opening draws attention to this problem – male fetuses exposed to greater risk under stress.

But if the female fetuses are hardier in the womb, then why in the world is still more boys are born? This can be explained by the fact that in some countries, such as India and China, practiced by the so-called selective abortion. Experts attribute this to social factors and traditions.

As one of the solutions to this problem can be considered childbearing in an artificial uterus outside the human body. Futurologists promise 30 years later massively grow people in test tubes .


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