Read this article and you'll become a dedicated environmentalist immediately. Chemicals in the environment are increasing the likelihood that a baby boy will be born with undescended testicles and/or decreased ability to father a child in adulthood. Here's the story:
http://www.onearth.org/article/undescended-testicles-phthalates
http://www.onearth.org/article/undescended-testicles-phthalates
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