The Presidio Compost and Regeneration Center is the backdrop for an exciting experiment that uses human hair and mushrooms to keep petroleum waste from damaging our environment. The project is the brainchild of Phil McCrory, a barber who invented “hairmats” as a means to soak up oily deposits; Paul Stamets, who designed the experiment and donated mushroom spawn from his company, FungiPerfecti; and Lisa Gautier, head of Matter of Trust, a local non-profit that promotes sustainable ideas and products. The team approached the Presidio in the wake of the Cosco-Busan oil spill.