Food waste

For centuries, humans have obtained fuel from the remains of organisms that lived millions of years ago, seawater, decaying biomass and now, from cow's milk ... or more accurately, salty whey, a by-product produced during the manufacture of cheese.

A protein-rich cookie made from plastic and agricultural waste could help solve two serious problems facing future generations, according to a team presenting results from their NASA-funded project at the Fall Meeting of the American Chemical Society.