Engineers 3D-printed edible cookies from plastic

There is little to love about plastic. Most of the manufacturing processes still rely on fossil fuels, it often still takes generations to decompose, and their microscopic residue is contaminating the planet (as well as our bodies). But chemical engineers at Southern Illinois University (SIU) Carbondale are developing a NASA-backed process that turns toxic plastic into something surprisingly edible—and possibly even delicious.According to work presented this week at the fall meeting of the