Tag: sex ratio

Pollution Linked to Changing Ratio of Baby Boys to Girls: Study

Air and water pollutants are linked to changes in the human sex ratio at birth (SRB)—the ratio between the number of newborn boys to the total number of newborns—according to a study of U.S. and Swedish populations. Researchers at the University of Chicago and Karolinska Institutet, Stockholm, found an association between numerous pollutants and changes to the…


The Boy Problem and the Girl Problem 

Commentary “Men are abandoning higher education in such numbers that they now trail female students by record levels.” That was the first sentence of a story in the Wall Street Journal on Sept. 6 with the dramatic title “A Generation of American Men Give Up on College: ‘I Just Feel Lost.’” The numbers certainly look…