Here is a scary news piece claiming that exposure to certain types of yoga mats increases a woman's risk of being infertile. This claim is based on this technical research article. I'm blogging about this because I did some consulting for the State of California's Department of Toxic Substances Control related to its Green Chemistry Initiative. Take a look at my 2012 paper, I think it is quite a good piece of work on the economics of phasing out potentially harmful chemicals in commonly used products.