This course overviews the science of composting by covering nutrient cycling (carbon and nitrogen, pollution), soil science (chemistry), microbial ecology, and the food/water/biodiversity/climate grand challenges. Local samples will be used. The course will enhance campus sustainability efforts through student research projects. Students will help the SCRAP lab optimize composting practices (e.g. aerobic biodigestor) to process dining-sourced bioplastics into healthy compost with low C emissions. Student findings will be an integral component of a larger NJ DEP supported project to advance campus recycling goals.