Critical raw materials and cities: A literature review

This paper asks what is the relationship between critical raw materials and cities within the European Union (EU)? To answer this question, this study seeks to categorise research findings on critical raw materials through a literature review. For this purpose, publications about critical raw materials have been systematically searched using a multidisciplinary scientific bibliographic database. Several screening criteria were applied to ensure the utmost accuracy and specificity in the development of research. During the review, the papers and the other publications found were systematised by dividing them into three thematic sections according to the focus adopted: critical raw materials as pollutants; their recycling; and the new technologies that can be applied to them. The results of the review show that the development of cities and their regeneration will increasingly depend on critical raw materials. Moreover, these findings suggest that soon the professionals who deal with urban regeneration and renewal will have to manage more and more issues related to critical raw materials. Furthermore, a correct understanding of the relationship between critical raw materials and cities is essential to avoid manipulation by populist parties which could use these strategic materials to support their autarchic rhetoric.