Climate change reduces fertility rates? High temperature disturbs the desire of man and woman to make man
birth, or not, this is a hot topic. But it's too hot. Oh, it means that the weather is so hot that many people may not be born. A study in the United States says climate change will reduce American fertility, because the data shows that in the nine months after every hot day, the birth rate in the United States will fall. What is the reason for this? The U. S. Institute of economic research recently released a report that the fertility rate in the United States has been on the overall decline over the years, although there are many reasons behind it, but the increase in hot weather in recent years may also play a part in the increase in climate change.
statistics from 1931 to 2010 show that the fertility rate of 9 months after 80 degrees (about 27 degrees centigrade) is 0.4% lower than that of weekdays. This can be converted into hot days, which will cause 1165 babies in the United States.
in the long run, this may lead to about 100 thousand babies per year in the United States, because the climate change model shows that the frequency of this hot weather may increase from 30 days a year to about 90 days.
what is the reason behind this phenomenon? The researchers believe that the temperature is too high in the two aspects of the physiological and psychological effects, such as high temperature can reduce the vitality of sperm, may also interfere with the menstrual period, in addition, too hot weather may affect people's mood, so that the "make people" will drop.
, however, there is also a view that due to the wide application of air-conditioning equipment, the effect of temperature on fertility rate has been greatly reduced compared with the past. The greater impact on fertility in the future should also be the type of work and economic situation.
but the relevant researchers believe that since the data show the relationship between temperature and fertility, this should be considered in the discussion of climate change.
besides, climate change may also have an indirect effect on fertility. For example, global warming has led to crop failure in some poor areas. Considering the grain ration, local people may take the initiative to control the fertility rate.