Composite materials have always been the butter on the bread of yachtbuilding but also important for larger vessels. Smaller fast passenger monohulls and catamarans have benefited from this technology, with many applications in aerospace and gradually automotive. In the advent of additive manufacturing, composites earn another dimension of usability. But in all use cases the environmental impact is not negligible. Whether scrap, purge, overflow, the process leaves behind a significant amount of material that needs to be managed. Read these two articles as a primer to environmental management of composites: