The L.A. Times had an interesting OP-ED piece this past Sunday on the term "Chemical-free". It was written by Deborah Blum, a Pulitzer Prize-winning science writer. We had a playful contest at the office a number of years ago where we would award a prize to anyone who could find anything on Earth that was not made up of chemicals. The prize has long since vanished into obscurity.
Please check out the article and share your thoughts.