- Climate change contributes to a declining birth rate in the United States. According to researchers at the National Bureau of Economic Research are at the end of this century, every year, 100 000 babies born less.
The research shows that eight to ten months after a warm period with more than 26.6 degrees significantly less babies are born. Between 1931 and 2010, each warm day means that there are about nine months later on average 1165 children were less in the world.
Why it is, is not yet clear. May be people in warm weather less sexually active or has the heat effect on the reproductive organs. Extreme heat in men has an impact on the production of sperm and testosterone, whereas in women, the menses, ovulation, and the nesting of fertilized eggs is affected.