Now biologists at the University College Dublin in Ireland have found that a strain of Pseudomonas putida can exist quite happily on a diet of pure styrene oil–the oil remnant of superheated Styrofoam–and, in the process, turn the environmental problem into a useful, biodegradable plastic.

Kevin O’Connor and his European colleagues turned the polystyrene into an oil through pyrolysis–a process that heats the petroleum-based plastic to 520 degrees Celsius in the absence of oxygen. This results in a chemical cocktail made up of more than 80 percent styrene oil plus low volumes of other toxicants. The researchers then fed this brew to P. putida CA-3, a special strain of a common soil microbe, fully expecting that the oil would have to be further purified in order to enable bacterial growth.

Kick ass. Scientific American Article.