Headlines of the day: Cause and effect?

First, from the San Francisco Chronicle:

4.7 million tons of BPA expected to be made in ’12

Second, from the New York Times:

Puberty Before Age 10: A New ‘Normal’?

BPA, or bisphenol A [previously], is a plastic used to line cans, coat cash register receipts, and much more. It’s been linked to early onset of puberty, belligerence in young girls, and a host of other conditions.

UPDATE: Here’s a description of the chemical’s health impacts from the blog of the science journal Nature:

BPA is a ubiquitous chemical that has been linked to a range of conditions, including heart disease, reproductive problems, behavioural problems and breast and prostate cancers. Scientists believe that it produces such a wide range of health effects in low doses because it mimics the hormone oestrogen, disrupting human development and making it particularly potent for infants.


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