Elemental Accounting

I heard an interview with professor Saleem H. Ali the other day, and was intrigued by his article on elemental recycling. He asks, "Many of us know what is inside our cereal boxes and other food items thanks to labeling guidelines, but how many of us know what elements are inside our computers or our clothes?" I certainly count myself among those who don't know how much boron is in their non-stick cookware.