Researchers from Nextek and Brunel University, UK, collaborate on a project that aims to close the loop on food-grade polypropylene via new sorting and decontamination processes. This article was written by Professor Edward Kosior FIMMM, Dr Jon Mitchell, Dr Martin Kay from Nextek, UK, and Dr George Fern at Brunel University London, UK. The direct impact of waste management sits at the heart of climate change. Global waste currently generates over 1.3Bt of CO2e.