Several weeks ago, I did not know much about metal life cycle and its challenges. This course helped me get familiar with all aspects of this wide topic. I feel I have a solid background now and that I would know where to look for more in-depth information. The course is about metals from their extraction to their recycling. For each step in the cycle, greener and substainable solutions are proposed and discussed. All the course is based on a solid background, mostly from UNEP. I highly recommend this course that will widen your understanding of the circular enconomy, applied in this case to metals.