“… Chemistry is currently faced with one of the biggest challenges in its history. The main reaction to this is a search for how new resources can be utilized in the synthesis of (new) compounds. However, much more is needed to meet this challenge: Sustainable chemistry is simultaneously both a path and a goal. It is not a new subdiscipline of chemistry, but a guiding principle. It uses the knowledge of all chemical subdisciplines along the entire lifecycles of chemical products …” Read more in the Guest Editorial by Klaus Kümmerer.