As we have seen and will continue to explore in our AM Focus this month, there are many facets to the topic of Sustainability within additive manufacturing. On the one hand, additive manufacturing opens up opportunities for more sustainable processes in many industries through the production of design-optimized and lightweight parts. Due to its additive nature, the technology also tends to result in minimal material waste. On the other hand, it is important to consider how manufacturing operations within AM have an ecological impact and how they can be improved. Beyond the industrial side of AM, there are also many ways in which 3D printing and sustainability have become linked, in large part thanks to the ingenuity of visionaries who understand the need for ecological solutions in all parts of our lives.