Given the problems the world is experiencing already because of a too large population, this may be a kind of blessing!
http://www.sciencedaily.com/releases/2011/06/110606092740.htm
ScienceDaily (June 6, 2011) — Daily exposure to a chemical that is prevalent in the human environment, bisphenol A (BPA), causes lowered fertility in male mice, according to the results of a new study that being presented at The Endocrine Society's 93rd Annual Meeting in Boston.
Mice that received daily BPA injections for two months had lower sperm counts and testosterone levels than those of mice that received saline injections without BPA, investigators from Banaras Hindu University in Varanasi, India, found. Compared with untreated controls, mice exposed to BPA produced litters that were 50 percent smaller.
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