All the tiny tubes of synthetic molecules in the lab indeed seem to contain salt or chalk dust or the like. (discovermagazine.com)
Human industrial activity may also prove to be visible in the geological record in the form of long - lived synthetic molecules from plastics and other products, or radioactive fallout from nuclear weapons. (washingtonpost.com)
The hope is to discover environmental factors that contribute to autism risk, from diet or infection to toxins like heavy metals, pesticides, and the countless synthetic molecules in products today. (discovermagazine.com)