Climate Change Could Be Contributing to Male Infertility, Scientists Warn

In a recent study, published in the journal Demography, Barreca and his team analyzed birth records in the U.S. from 1931 to 2010 along with weather data. They found that days with a mean temperature above 80 degrees Fahrenheit saw the steepest declines in birth rates 8 to 10 months later. Climate change could give many Americans more of those sweltering days. “Today, there’s about 30 days where the maximum temperature is above 90 degrees for the average person in the U.S. By the end of the century, climatologists are predicting that there will be 90 such days,” Barreca explains.