Every year, 350 billion tons of plastic ends up in landfills. Mirel is the first biodegradable plastic that is as strong and versatile as common petroleum-based polymers and will break down in soil, compost, wetlands or oceans. It’s made with E. coli microbes that have been genetically engineered to eat corn sugar and turn it into polyester granules, which Metabolix extracts and forms into moldable pellets. Among the first commercial products: gift cards for Target. metabolix.com